case study questions in life processes class 10

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Case Study Questions Class 10 Science Life Processes

Case study questions class 10 science chapter 6 life processes.

At Case Study Questions there will given a Paragraph. In where some Important Questions will made on that respective Case Based Study. There will various types of marks will given 1 marks, 2 marks, 3 marks, 4 marks.

CBSE Case Based Questions Class 10 Science Chemistry Chapter 6

CASE STUDY : 1

Carbon and energy requirements of the autotrophic organism are fulfilled by photosynthesis. It is the process by which autotrophs take in substances from the outside and convert them into stored forms of energy. This material is taken in the form of carbon dioxide and water which is converted into carbohydrates in the presence of sunlight and chlorophyll. Carbohydrates are utilised for providing energy to the plant.

i) Write a chemical reaction which occur during photosynthesis?

Ans: 6CO2 +12H2O + Chlorophyll & sunlight👉 C6H12O6 + 6O2 + 6H2O

ii) In which form of carbohydrates does the plant stored in them?

Ans: The carbohydrates are stored in the form of starch as the internal energy.

iii) What is stomata?

Ans: The process present in the surface of a leaf or the stem of a plant to allow the exchange of gases.

iv) What are the functions of stomata?

Ans: i) Exchange of gases i.e oxygen and CO2

ii) Transpiration

v) What is Chloroplast?

Ans: Chloroplast is a cell organelles which contains photosynthetic pigment called as chlorophyll which help in the absorption of sunlight.

CASE STUDY : 2

The alimentary canal is basically a long tube extending from the mouth to the anus. In Fig. 6.6, we can see that the tube has different parts. Various regions are specialised to perform different functions.

We eat various types of food which has to pass through the same digestive tract. Naturally the food has to be processed to generate particles which are small and of the same texture. This is achieved by crushing the food with our teeth

i) Which enzyme is present in our mouth to digest starch?

Ans: Salivary amylase from salivary glands.

ii) What are the types of enzymes released by our stomach?

Ans: Hydrochloric acid, pepsin and a mucus.

iii) Which is the longest part of our alimentary canal in our body?

Ans: Small intestine

iv) What are villi?

Ans: Villi are finger like projection present inside the inner lining of the small intestine which increases the surface area for absorption.

v) What are the enzymes that are released by pancreas?

Ans: Enzyme released by pancreas – • trypsin- Digestion of protein

lipase – breakdown of emulsified fats

CASE  STUDY : 3

The food material taken in during the process of nutrition is used in cells to provide energy for various life processes. Diverse organisms do this in different ways – some use oxygen to break-down glucose completely into carbon dioxide and water, some use other pathways that do not involve oxygen (Fig. 6.8). In all cases, the first step is the break-down of glucose, a six-carbon molecule, into a three-carbon molecule called pyruvate. This process takes place in the cytoplasm.

i) What is anaerobic respiration?

Ans: The conversion of pyruvate into ethanol, CO2 & energy take place in the absence of air(oxygen),  it is called anaerobic respiration.

ii) Explain the process which happen in our muscle cells?

Ans- The conversion of pyruvate to lactic acid( 3 carbon molecule)  and energy due to the lack of oxygen.

iii) In which form our body used the energy?

Ans: It is in the form of ATP molecule i.e Adenosine Triphosphate.

iv) Why there is a faster breathing rate of aquatic animals then the terrestrial animals?

Ans- The amount of O2 dissolved in water is low as compared to amount of O2 present in air. Therefore, aquatic animals have faster breathing rate.

v) Write the name of organ used for respiration by different organism- fish, frog?

Ans- i) fish- gills

ii) frog- skin, lungs

CASE STUDY : 4

The excretory system of human beings includes a pair of kidneys, a pair of ureters, a urinary bladder and a urethra. Kidneys are located in the abdomen, one on either side of the backbone. Urine produced in the kidneys passes through the ureters into the urinary bladder where it is stored until it is released through the urethra.

i) What is the purpose of making urine?

Ans: Urine is to filter out the blood i e to remove waste product from the blood such as urea.

ii) What is Bowman’s capsule?

Ans: A cup shaped end of a coiled tube which is associated with capillaries to collect filterate.

iii) What is dialysis?

Ans: To remove nitrogenous waste from your blood by using machine when kidney does not its function i.e in case of kidney failure.

iv) What is the function of urinary bladder?

Ans: It is used to stored urine until the pressure comes from the brain to pass it out.

v) What are the different parts of nephrons?

Ans: Renal artery, Bowman’s capsule, glomerulus, tubular part of nephron and a collecting duct.

CASE STUDY : 5

The heart is a muscular organ which is as big as our fist. Because both oxygen and carbon dioxide have to be transported by the blood, the heart has different chambers to prevent the oxygen-rich blood from mixing with the blood containing carbon dioxide. The carbon dioxide-rich blood has to reach the lungs for the carbon dioxide to be removed, and the oxygenated blood from the lungs has to be brought back to the heart. This oxygen-rich blood is then pumped to the rest of the body.

i) How many chambers are present in the heart of mammals and reptiles?

Ans: Mammals- 4 chamber heart and reptiles- 3 chambered heart

ii) Who carry deoxygenated blood from body to heart?

Ans: Vena cava carries deoxygenated blood from body to heart.

iii) What do you meant by the term double circulation?

Ans: The blood goes through the heart twice during each cycle known as double circulation.

iv) What is hypertension?

Ans: The force that blood experts against the wall of a vessels is called hypertension or high blood pressure.

V) Which device measured blood pressure?

Ans: Sphygmomanometer

CASE STUDY : 6

Plant transport systems will move energy stores from leaves and raw materials from roots. These two pathways are constructed as independently organised conducting tubes. One, the xylem moves water and minerals obtained from the soil. The other, phloem transports products of photosynthesis from the leaves where they are synthesised to other parts of the plant

i) What are the different parts of xylem?

Ans: vessels, tracheids, xylem parenchyma and fibres.

ii) What do you meant by the term transpiration?

Ans: The loss of water in the form of vapour from the aerial parts of the plant.

iii) What are the advantages of transpiration?

Ans: i) help in the absorption and the upward movement of water

ii) temperature regulation

iv) What is translocation?

Ans: The transport of soluble products of photosynthesis is called translocation.

v) How does plant remove their waste product?

Ans: They remove their waste product in the form of fallen leaves, resins and gums.

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Case Study and Passage Based Questions for Class 10 Science Chapter 6 Life Processes

• Last modified on: 3 years ago
• Reading Time: 7 Minutes

In CBSE Class 10 Science Paper, Students will have to answer some questions based on  Assertion and Reason . There will be a few questions based on case studies and passage based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Here, we have provided case based/passage based questions for Class 10 Science  Chapter 6 Life Processes .

Question 1:

Read the following and answer any four questions from (i) to (v).

All living cells need nutrients, O, and other essential substances. Also, the waste and harmful substances need to be removed continuously for healthy functioning of cells. So, a well developed transport system is mandatory for living organisms. Complex organisms have special fluids within their bodies to transport such materials. Blood is the most commonly used body fluid by most of the higher organisms. Lymph also helps in the transport of certain substances.

(i) Which of the following does not exhibit phagocytic activity? (a) Monocytes (b) Neutrophils (c) Basophil (d) Macrophage

(ii) Amount of blood corpusles in changed in dengue fever. One of the common symptoms observed in people infected with dengue fever is (a) significant decrease in RBC count (b) significant decrease in WBC count (c) significant decrease in platelets count (d) significant increase in platelets count.

(iii) Why are WBCs called soldiers of the body? (a) They are capable of squeezing out of blood capillaries. (b) They are manufactured in bone marrow. (c) They fight against disease causing germs. (d) They have granular cytoplasm with lobed nucleus.

(iv) Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body. (a) Erythrocytes (b) Neutrophils (c) Leucocytes (d) Thrombocytes

(v) Which of the following is the correct feature of lymph? (a) It is similar to the plasma of blood, but is colourless and contains less proteins. (b) It is similar to the WBCs of blood, but is colourless and contain more proteins. (c) It is similar to the RBCs of blood and red in colour. (d) It contains more fats.

Question 2:

Heterotrophic nutrition is a mode of nutrition in which organisms obtain readymade organic food from outside sources. The organisms that depend upon outside sources for obtaining organic nutrients are called heterotrophs. Heterotrophic nutrition is of three types: saprophytic, parasitic and holozoic nutrition.

(i) In which of the following groups of organisms food material is broken outside the body and absorbed? (a) Mushroom, green plants, Amoeba (b) Yeast, mushroom, bread mould (c) Paramecium, Amoeba, Cuscuta (d) Cuscuta, lice, tapeworm

(ii) Which of the following is a parasite? (a) Yeast (b) Taenia (c) Amoeba (d) Earthworm

(iii) Which of the following is an example of saprotroph? (a) Grass (b) Mushroom (c) Amoeba (d) Paramecium

(iv) Heterotrophic nutrition involves (a) production of simple sugar from inorganic compounds (b) utilisation of chemical energy to prepare food (c) utilisation of energy obtained by plants (d) all of these.

(v) In Paramecium, food enters the body through (a) mouth (b) pseudopodia (c) cilia (d) cytostome

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Case Study Questions Class 10 Science Chapter 6 Life Processes

• Post author: studyrate
• Post published:
• Post category: class 10th
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CBSE Board Exam is on the way, so you must practice some good Case Study Questions Class 10 Science to boost your preparation to score 95+% on Boards. In this post, you will get Case Study and Passage Based Questions that will come in CBSE Class 10 Science Board Exams.

Join our Telegram Channel, there you will get various e-books for CBSE 2024 Boards exams for Class 9th, 10th, 11th, and 12th.

In CBSE Class 10 Science Paper, Students will have to answer some questions based on  Assertion and Re a son . There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Life Processes Case Study Questions With Answers

Here, we have provided case-based/passage-based questions for Class 10 Science  Chapter 6 Life Processes

Case Study/Passage-Based Questions

Question 1:

Transpiration is the evaporative loss of water by plants. It occurs mainly through the stoma in the leaves. Besides the loss of water vapor in transpiration, the exchange of oxygen and carbon dioxide in the leaf also occurs through pores called stomata. Normally stomata remain open in the daytime and close during the night

(i) Which of the following will not directly affect transpiration?

Answer: (d) Chlorophyll content of leaves

(ii) Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening, carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements . using one of following options. (a) The above processes happen only during night time. (b) One process occurs during day time and the other at night. (c) Both processes cannot happen Simultaneously. (d) Both processes can happen together at day time.

Answer: (d) Both processes can happen together at day time.

(iii) Which of the following statements is not true for stomatal apparatus? (a) Guard cells invariably possess chloroplasts and mitochondria. (b) Guard cells are always surrounded by subsidiary cells. (c) Stomata are involved in gaseous exchange. (d) Inner wall of guard cells are thick.

Answer: (b) Guard cells are always surrounded by subsidiary cells.

(iv) Which of the following is not a purpose of transpiration? (a) Helps in absorption and transport in plants (b) Prevents loss of water (c) Maintains shape and structure of plants by keeping the cells turgid (d) Supplies water for photosynthesis

Answer: (b) Prevents loss of water

Answer: (a) P-Atmospheric temperature; Q-Atmospheric pressure

Question 2:

Heterotrophic nutrition is a mode of nutrition in which organisms obtain readymade organic food from outside sources. The organisms that depend upon outside sources for obtaining organic nutrients are called heterotrophs. Heterotrophic nutrition is of three types: saprophytic, parasitic, and holozoic nutrition.

(i) In which of the following groups of organisms food material is broken outside the body and absorbed? (a) Mushroom, green plants, Amoeba (b) Yeast, mushroom, bread mould (c) Paramecium, Amoeba, Cuscuta (d) Cuscuta, lice, tapeworm

Answer: (b) Yeast, mushroom, bread mould

(ii) Which of the following is a parasite? (a) Yeast (b) Taenia (c) Amoeba (d) Earthworm

Answer: (b) Taenia

(iii) Which of the following is an example of saprotroph? (a) Grass (b) Mushroom (c) Amoeba (d) Paramecium

Answer: (b) Mushroom

(iv) Heterotrophic nutrition involves (a) production of simple sugar from inorganic compounds (b) utilisation of chemical energy to prepare food (c) utilisation of energy obtained by plants (d) all of these.

Answer: (c) utilisation of energy obtained by plants

(v) In Paramecium, food enters the body through (a) mouth (b) pseudopodia (c) cilia (d) cytostom

Answer: (d) cytostom

Case Study 3: Life processes are the essential functions that living organisms perform to maintain their existence. These processes include nutrition, respiration, transportation, excretion, and reproduction. Nutrition involves the intake of food and its utilization by the body for energy and growth. It can be classified into two types: autotrophic and heterotrophic. Autotrophic nutrition is the process by which organisms, such as plants, produce their own food using sunlight, water, and carbon dioxide through photosynthesis. Heterotrophic nutrition is the process by which organisms obtain nutrients by consuming other organisms. Respiration is the process of releasing energy from food through the oxidation of glucose molecules. Transportation involves the movement of materials, such as nutrients, water, and gases, within the body. Excretion is the removal of waste products generated by metabolic activities. Reproduction is the process by which organisms produce offspring of their own kind. Understanding life processes is crucial for studying the functioning and survival of living organisms.

What are the essential functions that living organisms perform to maintain their existence called? a) Life processes b) Metabolic activities c) Cellular respiration d) Photosynthesis Answer: a) Life processes

What is autotrophic nutrition? a) The process of consuming other organisms for nutrients b) The process of producing food using sunlight, water, and carbon dioxide through photosynthesis c) The process of releasing energy from food through oxidation d) The process of removing waste products from the body Answer: b) The process of producing food using sunlight, water, and carbon dioxide through photosynthesis

What is the process of releasing energy from food through the oxidation of glucose molecules called? a) Respiration b) Photosynthesis c) Transportation d) Reproduction Answer: a) Respiration

What does transportation involve? a) The intake of food and its utilization by the body b) The movement of materials within the body c) The removal of waste products generated by metabolic activities d) The process of producing offspring Answer: b) The movement of materials within the body

What is reproduction? a) The intake of food and its utilization by the body b) The movement of materials within the body c) The removal of waste products generated by metabolic activities d) The process of producing offspring of their own kind Answer: d) The process of producing offspring of their own kind

Hope the information shed above regarding Case Study and Passage Based Questions for Class 10 Science Chapter 6 Life Processes with Answers Pdf free download has been useful to an extent. If you have any other queries about CBSE Class 10 Science Life Processes Case Study and Passage-Based Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible. By Team Study Rate

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• Life Processes Class 10 Case Study Questions Science Chapter 6

Last Updated on September 13, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 10 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 10 science. In this article, you will find case study questions for cbse class 10 science chapter 6 Life Processes.

Table of Contents

Case Study Questions on Life Processes

Question 1:

Read the following and answer the questions given below:

Heterotrophic nutrition is a mode of nutrition in which organisms obtain readymade organic food from outside sources. The organisms that depend upon outside sources for obtaining organic nutrients are called heterotrophs. Heterotrophic nutrition is of three types: saprophytic, parasitic and holozoic nutrition.

(i) In which of the following groups of organisms food material is broken outside the body and absorbed? (a) Mushroom, green plants, Amoeba (b) Yeast, mushroom, bread mould (c) Paramecium, Amoeba, Cuscuta (d) Cuscuta, lice, tapeworm

Difficulty Level: Medium

Ans. Option (b) is correct. Explanation: Yeast, mushroom and bread mould have a saprophytic mode of nutrition which is chemoheterotrophic in nature. They breakdown complex organic substances by secreting digestive enzyme outside their body and absorb simple molecules as nutrients.

(ii) Which of the following is a parasite? (a) Yeast (b) Taenia (c) Amoeba (d) Earthworm

Ans. Option (b) is correct.

(iii) Which of the following is an example of saprotroph? (a) Grass (b) Mushroom (c) Amoeba (d) Paramecium

(iv) Heterotrophic nutrition involves (a) production of simple sugar from inorganic compounds (b) utilisation of chemical energy to prepare food (c) utilisation of energy obtained by plants (d) all of these.

Ans. Option (c) is correct. Explanation: Heterotrophic nutrition is mode of nutrition in which an organism depends on other living organisms for food.

(v) In Paramecium, food enters the body through (a) mouth (b) pseudopodia (c) cilia (d) cytostome.

Ans. Option (d) is correct. Explanation: Feeding apparatus in Paramecium consists of peristome, vestibule, buccal cavity, cytostome (cell mouth) and cytopharynx.

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Chemical reactions and equations class 10 case study questions science chapter 1, topics from which case study questions may be asked.

• Basic concept of nutrition, respiration, transport and excretion in plants and animals.
• Autotrophic Nutrition
• Heterotrophic Nutrition
• Photosynthesis
• Nutrition in Unicellular Organisms
• Human Digestive System

This chapter deals with the basic understanding of nutrition, respiration, transport and excretion in plants and animals. Life Processes are maintenance processes, which sustain orderly structure of living beings e.g. Plants use CO2, animals consume carbohydrate, fats, proteins etc. Continuous supply of energy and materials is needed for maintenance of life by these processes. Life on earth depends on carbon-based molecules, therefore, the sources of energy and materials are carbon-based. The way of life of different organisms depends on complexity of the carbon source. All living organisms use ATP as a source of energy, required for molecular movements, growth and maintenance of living structure.

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Frequently Asked Questions (FAQs) on Life Processes Case Study Questions

Q1: what are case study questions for cbse examinations.

A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.

Q2: Why are case study questions important for understanding class 10 science chapters?

A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.

Q3: How should students approach answering case study questions for CBSE?

A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of chemical reactions and equations, and formulate well-supported solutions or responses.

Q4: Are there any resources available online for students to practice case study questions on class 10 science chapters for CBSE exams?

A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our  website  to access these questions and enhance your learning experience. If you need more case study questions for your preparation, then you visit Physics Gurukul website.

Q5: How can students effectively prepare for case study questions on Life Processes for CBSE exams?

A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.

Q6: How can teachers incorporate case study questions on Life Processes class 10 science into classroom teaching?

A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of Life Processes.

Q7: What is transportation?

A7: Transportation is the life process by which substances absorbed or synthesised in one part of the body are carried to other parts where they are consumed.

Q8: What is circulatory system?

A8: It is the system for transportation of substances within the body consisting of organs and fluids.

Q9: Name the instrument used to measure blood pressure.

A9: Sphygmomanometer

Q10: Why do the ventricles have thicker muscular walls as compared to the atria?

A10: Auricles collect the blood coming from veins with very low pressure and pass it to ventricles. Ventricles pump the blood into various organs of the body. They have thicker muscular walls to create sufficient pressure for pumping the blood.

Q11: What is lymph?

A11: Lymph is the tissue fluid formed by a part of blood that comes out of capillaries into extracellular space. It contains plasma, proteins and blood cells. It serves as a medium for transport of materials to and from individual cells.

Q12: What would be the consequences of deficiency of haemolglobin in our bodies?

A12: Haemoglobin present in red blood corpuscles serves as the respiratory pigment for transport of oxygen. If there is deficiency of haemoglobin in our body, the blood will not be able to carry sufficient oxygen. This will cause tiredness, shortness of breath and dizziness.

Q13: Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds?

A13: Mammals and birds are warm-blooded animals. To maintain their body temperature they need energy constantly. To release more energy by aerobic respiration they need more supply of oxygenated blood. Separation of oxygenated and deoxygenated blood in the heart allows a highly efficient supply of oxygen to the body.

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Case Study Chapter 6 Life Processes

Please refer to Chapter 6 Life Processes Case Study Questions with answers provided below. We have provided Case Study Questions for Class 10 Science for all chapters as per CBSE, NCERT and KVS examination guidelines. These case based questions are expected to come in your exams this year. Please practise these case study based Class 10 Science Questions and answers to get more marks in examinations.

Case Study Questions Chapter 6 Life Processes

Case/Passage – 1

There is a pair of bea n- shaped organs P in the human body towards the back, just above the waist. A waste product Q formed by the decomposition of unused proteins in the liver is brought into organ P through blood by an artery R. The numerous tiny filters S present in organ P clean the dirty blood by removing the waste product Q. The clean blood goes into circulation through a vein T. The waste substance Q, other waste salts, and excess water form a yellowish liquid U which goes from organ P into a bag-like structure V through two tubes W. This liquid is then thrown out of the body through a tube X.

Question: Name (i) artery R, and (ii) vein T.        

Renal artery

Question: What are tiny filters S known as?      

Question: What is (i) organ P, and (ii) waste substance Q?  

Question: Name (i) liquid U (ii) structure V (iii) tubes W, and (iv) tube X.

(i) Urine (ii) Bladder (iii) Ureters (iv) Urethra

Case/Passage – 2

All living cells require energy for various activities. This energy is available by the breakdown of simple carbohydrates either using oxygen or without using oxygen.

Question: Energy in the case of higher plants and animals is obtained by (a) Breathing (b) Tissue respiration (c) Organ respiration (d) Digestion of food   

Question: The graph below represents the blood lactic acid concentration of an athlete during a race of 400 m and shows a peak at point D. Lactic acid production has occurred in the athlete while running in the 400 m race. Respiration in athletics  The blood of an athlete was tested before, during and after a 400m race: Respiration in athletics The blood of an athlete was tested before, during and after a 400m race:

Lactic acid production has occurred in the athlete while running in the 400 m race. Which of the following processes explains this event? Which of the following processes explains this event? (a) Aerobic respiration (b) Anaerobic respiration (c) Fermentation (d) Breathing

Question: Study the graph below that represents the amount of energy supplied with respect to the time while an athlete is running at full speed. Choose the correct combination of plots and justification provided in the following table.

Question: Study the table below and select the row that has the incorrect information.                                                  Aerobic               Anaerobic (a) Location                              Cytoplasm       Mitochondria (b) End Porduct                       CO 2  and H 2 O     Ethanol and CO 2 (c) Amount of ATP                      High                  Low (d) Oxygen                                Needed            Not needed   

Question: The characteristic processes observed in anaerobic respiration are: (i) presence of oxygen (ii) release of carbon dioxide (iii) release of energy (iv) release of lactic acid (a) (i), (ii) only (b) (i), (ii), (iii) only (c) (ii), iii), iv) only (d) (iv) only

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Life Processes Case Study Based Questions Class 10

Students who are studying in CBSE class 10 board, need to get the knowledge about the Life Processes Case Study Based Questions. Case based questions are generally based on the seen passages from the chapter Life Processes. Through solving the case based questions, students can understand each and every concept. 

 With the help of Life Processes Case Study Based Questions, students don’t need to memorise each answer. As answers for these case studies are already available in the given passage. Questions are asked through MCQs so student’s won’t take time to mark the answers. These multiple choice questions can help students to score the weightage of Life Processes. 

Life Processes Case Study Based Questions with Solutions 

Selfstudys provides case studies for the Class 10 Science chapter Life Processes with solutions. The Solutions can be helpful for students to refer to if there is a doubt in any of the case studies problems. The solutions from the Selfstudys website are easily accessible and free of cost to download. This accessibility can help students to download case studies from anywhere with the help of the Internet. 

Life Processes Case Study Based Questions with solutions are in the form of PDF. Portable Document Format (PDF) can be downloaded through any of the devices: smart phone, laptop. Through this accessibility, students don't need to carry those case based questions everywhere. 

Features of Life Processes Case Study Based Questions

Before solving questions, students should understand the basic details of Life Processes. Here are the features of case based questions on Life Processes are:

• These case based questions start with short or long passages. In these passages some concepts included in the chapter can be explained.
• After reading the passage, students need to answer the given questions. These questions are asked in the Multiple Choice Questions (MCQ). 
• These case based questions are a type of open book test. These case based questions can help students to score well in the particular subject. 
•  These Life Processes Case Study Based Questions can also be asked in the form of CBSE Assertion and Reason .

Benefits of Solving Life Processes Case Study Based Questions

According to the CBSE board, some part of the questions are asked in the board exam question papers according to the case studies. As some benefits of solving Life Processes Case Study Based Questions can be obtained by the students. Those benefits are: 

• Through solving case studies students will be able to understand every concept included in the chapter Life Processes
• Passages included in the case study are seen passages, so students don’t need to struggle for getting answers. As these questions and answers can be discussed by their concerned teacher. 
• Through these students can develop their observation skills. This skill can help students to study further concepts clearly. 
• Case studies covers all the concepts which are included in the Life Processes

How to Download Life Processes Case Based Questions? 

Students studying in CBSE class 10 board, need to solve questions based on case study. It is necessary for students to know the basic idea of Life Processes Case Study Based Questions. Students can obtain the basic idea of case based questions through Selfstudys website. Easy steps to download it are:

• Open Selfstudys website. 

• Bring the arrow towards CBSE which is visible in the navigation bar. 

• A pop-up menu will appear, Select case study from the list. 

• New page will appear, select 10 from the list of classes. 

• Select Science from the subject list. 

• And in the new page, you can access the Life Processes Case Study Based Questions. 

Tips to solve Life Processes Case Study Questions-

Students should follow some basic tips to solve Life Processes Case Study Based Questions. These tips can help students to score good marks in CBSE Class 10 Science. 

• Generally, the case based questions are in the form of Multiple Choice Questions (MCQs). 
• Students should start solving the case based questions through reading the given passage. 
• Identify the questions and give the answers according to the case given. 
• Read the passage again, so that you can easily answer the complex questions. 
• Answer according to the options given below the questions provided in the Life Processes Case Study Based Questions. 

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CBSE 10th Standard Science Subject Life Processes Chapter Case Study Questions With Solution 2021

CBSE 10th Standard Science Subject Life Processes Chapter Case Study Questions With Solution 2021 Prerna - Bangalore May-21 , 2021

QB365 Provides the updated CASE Study Questions for Class 10 , and also provide the detail solution for each and every case study questions . Case study questions are latest updated question pattern from NCERT, QB365 will helps to get  more marks in Exams 

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Cbse 10th standard science subject life processes case study questions with solution 2021.

Final Semester - June 2015

(ii) Fermentation is represented by the equation \(\text { (a) } \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+6 \mathrm{O}_{2} \rightarrow 6 \mathrm{CO}_{2}+6 \mathrm{H}_{2} \mathrm{O}+686 \mathrm{kcal}\) \(\text { (b) } \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \rightarrow 2 \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+2 \mathrm{CO}_{2}+59 \mathrm{kcal}\) \(\text { (c) } 6 \mathrm{CO}_{2}+12 \mathrm{H}_{2} \mathrm{O} \frac{\text { Light }}{\text { Chlorophyll }}>\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+6 \mathrm{H}_{2} \mathrm{O}+6 \mathrm{O}_{2}\) \(\text { (d) } 6 \mathrm{CO}_{2}+6 \mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+6 \mathrm{O}_{2} \text { . }\) (iii) A test tube containing molasses solution and yeast is kept in a warm place overnight. The gas collected from this mixture

(iv) Ethyl alcohol fermentation occurs in

(v) Though vertebrates are aerobes, but their (i) show anaerobic respiration during (ii) During this  (iii) of skeletal muscle fibres is broken down-to release lactic acid and energy. Lactic acid, if accumulates causes muscle fatigue. Fill up the blanks in the above paragraph and select the correct option

(iii) Which of the following animals shows double circulatory pathway?

(v) Select the option which properly represents pulmonary circulation in humans. \(\text { (a) Left auricle } \frac{\text { Deoxygenated }}{\text { blood }}{\longrightarrow} \text { Lungs } \frac{\text { Oxygenated }}{\text { blood }} \text { Right ventricle }\) \(\text { (b) Left auricle } \frac{\text { Oxygenated }}{\text { blood }}{\longrightarrow} \text { Lungs } \frac{\text { Deoxygenated }}{\text { blood }}{\longrightarrow} \text { Right ventricle }\) \(\text { (c) Right ventricle } \frac{\text { Deoxygenated }}{\text { blood }}{\longrightarrow} \text { Lungs } \frac{\text { Oxygenated }}{\text { blood }} \rightarrow \text { Left auricle }\) \(\text { (d) Right ventricle } \frac{\text { Oxygenated }}{\text { blood }}>\text { Lungs } \frac{\text { Deoxygenated }}{\text { blood }} \gg \text { Left auricle }\)

Transpiration is the evaporative loss of water by plants. It occurs mainly through the stoma in the leaves. Besides the loss of water vapour in transpiration, exchange of oxygen and carbon dioxide in the leaf also occurs through pores called stomata. Normally stomata remain open in the day time and close during the night (i) Which of the following will not directly affect transpiration?

(v) Which of the following sequences is correct to initiate inspiration? (I) The contraction of intercostal muscles raises the ribs and sternum (II) Volume of thorax increases (III) Intrathoracic pressure of the lungs decreases (IV) Diaphragm contraction (v) Air rushes into lungs

The green plants make their food, through photosynthesis and are therefore called autotrophs. All other organisms depend upon green plants for food and are referred to as heterotrophs. Green plants carry out photosynthesis by using light energy of sun. The first phase of reactions are directly light driven therefore called light reactions. The second phase of reactions are not directly light driven but are dependent on the products of light reactions and are called dark reactions. (i) Which of the following is produced during the light phase of photosynthesis?

(ii) In the overall process of photosynthesis, the number of sugar molecules produced is

(v) Following table summarises the differences between light and dark reactions.

Which of the following is correct group of differences?

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Class 10 Science Chapter 5 Case Based Questions - Life Processes

Question 1:  Which of these is the structural and functional unit of part 2? (a)  Alveoli   (b)  Nephron   (c) Neuron   (d)  None of these

Correct Answer is Option (b) A nephron is the basic functional unit of kidneys that consists of a glomerulus and its associated tubules through which the glomerular filtrate passes before it emerges as urine. They are the microscopic structure composed of a renal corpuscle and a renal tubule.

Question 2: Choose the correct path of urine in our body: (a)  kidney → ureter → urethra → urinary bladder (b)  kidney → urinary bladder → urethra → ureter (c) kidney → ureters → urinary bladder → urethra (d)  urinary bladder → kidney → ureter → urethra

Correct Answer is Option (c) Kidneys are the paired organs where urine formation takes place. Small muscular tube, called as ureter, extend from kidneys and carries urine to urinary bladder. The urethra is a small tube that extends from the urinary bladder to an external opening.

Read the given passage and answer the questions from. Oxygen-rich blood from the lungs comes to the thin-walled upper chamber of the heart on the left. The left upper chamber (A) then relaxes. It then contracts and the blood is allowed to enter the next chamber (B), as it expands. When the muscular left lower chamber of heart contracts the blood is pumped out to the body via aorta. Deoxygenated blood reaches from the body to the upper chamber on the right side of heart (C) and it expands. As this part contracts, the corresponding lower chamber (D) dilates. This transfers the blood to right ventricle, which in turn pumps it to the lungs for oxygenated. Question 3: Which of these correctly represents the label A, B, C and D in the above passage? (a) A - Left atrium, B- Left Ventricle, C- Right atrium, D- Right ventricle (b) A - Right ventricle, B- Left atrium, C- Left Ventricle, D- Right atrium (c) A- Right atrium, B- Right ventricle, C- Left atrium, D- Left ventricle (d) A- Left ventricle, B- Right atrium, C- Right ventricle, D- Left atrium

Correct Answer is Option (a) A- Left atrium, B- Left Ventricle, C- Right atrium, D- Right ventricle

Question 4: What is the correct route of blood in a human?  (a)  A → B → Lungs → C → D (b)  A → B → D → C → Lungs (c)  C → D → B → A → Lungs (d)  C → D → Lung → A → B

Correct Answer is Option (d) C (Right atrium) → D (Right ventricle) → Lungs → A (Left atrium) → B (Left ventricle).

Question 5: What prevents backflow of blood inside the heart during contraction?   (a) Valves in heart (b) Thick muscular walls of ventricles (c) Thin walls of atria (d) All of the above

Correct Answer is Option (a) False. Valves prevent the back flow of blood inside the heart during contraction of heart chambers (atria or ventricles).

Read the passage and answer the questions. Some experiments were carried out using Croton sp. plants to understand the process of photosynthesis. It was observed that the leaves of the plant exposed to light for longer duration accumulated more starch. However, due to presence of pre-formed starch in the leaves, it was difficult to find the net productivity on a fixed exposure to light source. Therefore, it was necessary to obtain starch free leaves in the plant before starting the experiment. Question 6: Which of the following would help obtain starch free leaves in the plant?  (a)  Expose the leaves to blue light for 48 hours before starting the experiment. (b)  Keep the plant in dark for about 48 hours before starting the experiment. (c)  Remove starch from the leaves by exosmosis, 48 hours before starting the experiment. (d)  Keep the leaves to red light for 48 hours before starting the experiment.

Correct Answer is Option (b) The starch free leaves can be obtained by keeping the plant in dark, so that already present starch is utilized in 48 hrs.

Question 7: After a period of illumination, the leaves were boiled in alcohol to make them colourless. Which of the following could be used to test the end product stored in the leaves?  (a)  Cobalt chloride paper (b) Litmus paper (c)  Iodine solution (d)  Copper sulphate solution

Correct Answer is Option (c) Starch presence can be tested by adding iodine solution which gives bluish black colour of starch – iodine mixture.

Question 8: Some of the starch free leaves were coated with wax on both the surfaces. The plant was maintained under normal environmental conditions. At the end of the experiment, the wax coated leaves are likely to show _____.  (a) Accumulation of more water. (b)  Wilting of the wax coated leaves. (c)  Increase in sucrose accumulation. (d)  Decrease in number of chloroplasts

Correct Answer is Option (b) Wilting occurs due to wax blocks the transpiration so water transportation inhibits.

Question 9: During the morning hours, using a fine blade, an incision was made to the leaves such that the phloem tissue was cut open. Analysis of the liquid oozing out was found to contain high amount of:  (a)  Xylose (b)  Ribose (c)  Sucrose (d)  Galactose

Correct Answer is Option (c) The transport of glucose, occurs in the form of sucrose, in phloem therefore, when cell sap oozes out, liquid contains sucrose.

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