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Essay on Photosynthesis

Students are often asked to write an essay on Photosynthesis in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

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100 Words Essay on Photosynthesis

What is photosynthesis.

Photosynthesis is how plants make their own food using sunlight. It happens in the leaves of plants. Tiny parts inside the leaves, called chloroplasts, use sunlight to turn water and carbon dioxide from the air into sugar and oxygen. The sugar is food for the plant.

The Ingredients

The main things needed for photosynthesis are sunlight, water, and carbon dioxide. Roots soak up water from the soil. Leaves take in carbon dioxide from the air. Then, using sunlight, plants create food and release oxygen.

The Process

In the chloroplasts, sunlight energy is changed into chemical energy. This energy turns water and carbon dioxide into glucose, a type of sugar. Oxygen is made too, which goes into the air for us to breathe.

Why It’s Important

Photosynthesis is vital for life on Earth. It gives us food and oxygen. Without it, there would be no plants, and without plants, animals and people would not survive. It also helps take in carbon dioxide, which is good for the Earth.

250 Words Essay on Photosynthesis

Photosynthesis is a process used by plants, algae, and some bacteria to turn sunlight, water, and carbon dioxide into food and oxygen. Think of it like a recipe that plants use to make their own food. This happens in the leaves of plants, which have a green substance called chlorophyll.

Why is Photosynthesis Important?

This process is very important because it is the main way plants make food for themselves and for us, too. Without photosynthesis, plants could not grow, and without plants, animals and humans would not have oxygen to breathe or food to eat.

How Photosynthesis Works

Photosynthesis happens in two main stages. In the first stage, the plant captures sunlight with its leaves. The sunlight gives the plant energy to split water inside its leaves into hydrogen and oxygen. The oxygen is released into the air, and the hydrogen is used in the next stage.

In the second stage, the plant mixes the hydrogen with carbon dioxide from the air to make glucose, which is a type of sugar that plants use for energy. This energy helps the plant to grow, make flowers, and produce seeds.

The Cycle of Life

Photosynthesis is a key part of the cycle of life on Earth. By making food and oxygen, plants support life for all creatures. When animals eat plants, they get the energy from the plants, and when animals breathe, they use the oxygen that plants release. It’s a beautiful cycle that keeps the planet alive.

500 Words Essay on Photosynthesis

Photosynthesis is a process used by plants, algae, and some bacteria to turn sunlight, water, and carbon dioxide into food and oxygen. This happens in the green parts of plants, mainly the leaves. The green color comes from chlorophyll, a special substance in the leaves that captures sunlight.

The Ingredients of Photosynthesis

To make their food, plants need three main things: sunlight, water, and carbon dioxide. Sunlight is the energy plants use to create their food. They get water from the ground through their roots. Carbon dioxide, a gas found in the air, is taken in through tiny holes in the leaves called stomata.

The Photosynthesis Recipe

When sunlight hits the leaves, the chlorophyll captures it and starts the food-making process. The energy from the sunlight turns water and carbon dioxide into glucose, a type of sugar that plants use for energy, and oxygen, which is released into the air. This process is like a recipe that plants follow to make their own food.

The Importance of Photosynthesis

Photosynthesis is very important for life on Earth. It gives us oxygen, which we need to breathe. Plants use the glucose they make for growth and to build other important substances like cellulose, which they use to make their cell walls. Without photosynthesis, there would be no food for animals or people, and no oxygen to breathe.

The Benefits to the Environment

Photosynthesis also helps the environment. Plants take in carbon dioxide, which is a gas that can make the Earth warmer when there is too much of it in the air. By using carbon dioxide to make food, plants help keep the air clean and the Earth’s temperature just right.

Photosynthesis and the Food Chain

All living things need energy to survive, and this energy usually comes from food. Plants are at the bottom of the food chain because they can make their own food using photosynthesis. Animals that eat plants get energy from the glucose in the plants. Then, animals that eat other animals get this energy too. So, photosynthesis is the start of the food chain that feeds almost every living thing on Earth.

Photosynthesis in Our Lives

Photosynthesis affects our lives in many ways. It gives us fruits, vegetables, and grains to eat. Trees and plants also give us wood, paper, and other materials. Plus, they provide shade and help make the air fresh and clean.

In conclusion, photosynthesis is a vital process that allows plants to make food and oxygen using sunlight, water, and carbon dioxide. It is the foundation of the food chain and has a big impact on the environment and our lives. Understanding photosynthesis helps us appreciate how important plants are and why we need to take care of them and the environment they live in.

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84 Photosynthesis Essay Topic Ideas & Examples

🏆 best photosynthesis topic ideas & essay examples, 👍 good essay topics on photosynthesis, 📌 simple & easy photosynthesis essay titles, ❓ photosynthesis essay questions.

  • Similarities and Differences of Photosynthesis and Cellular Respiration The starting reactants are the light of the sun, carbon dioxide, and water. Both processes are required to support the being of plants and animals.
  • Photosynthetic Pigments in the Chlorophyll Extract Write a concise figure legend with a minimal number of words that allows the reader to understand what he sees. Note: Do not repeat all details of the methods in the legend!
  • Planting Bamboo: The Role of Photosynthesis Lastly, I think bamboo’s photosynthetic exceptionalism is manifested in the fact that light is one of the most important factors of photosynthesis, as it is a source of the necessary radiant energy for biochemical processes.
  • Photosynthetic Organism: Aesculus Hippocastanum Aesculus hippocastanum is not picky about food and can grow for a long time in the shade and on sub-hourly soils.
  • Research and Experiments: Molecules in Food, Photosynthesis The saliva of humans and some mammals contains amylase: the enzyme that begins the chemical process of food digestion. I took the pollution of the environment with heavy metals and the effect on photosynthesis.
  • Runaway Photosynthesis and Its Effects on Life in the Universe According to extant literature, runaway photosynthesis describes a scenario in which the machinery of photosynthesis could be adversely affected by shifts in the environment, leading to the crumbling of all ecosystems that depend on it […]
  • The Photosynthetic Rate in Terrestrial Plants In this regard, one is expected to establish the necessities of photosynthesis and discover the requirement of carbon dioxide and light for oxygen evolution.
  • Recent Advances in Artificial Photosynthesis Specifically, scientists strive to use the known and change them into “functional, efficient, synthetic systems that will tap the endless supply of energy coming from the sun”.[1] Researchers believe that artificial photosynthesis can work on […]
  • The Complexity of Photosynthesis and Respiration The dark reaction which happens in the absence of light but inside the stroma utilizes CO2 and ATP to form sugars in what is referred to as the Calvin Cycle.
  • Photosynthesis as a Biological Process During the process water from the soil is taken up by the roots all the way to the leaves via the xylem.
  • Photosynthesis & Fermentation: Plant Cellular Metabolism The process of photosynthesis and fermentation was the main focus of the practical exercise. The role of the fermentation process to provide energy for the yeast cells is shown in this experiment.
  • “Why Study Photosynthesis?” by Devens Gust By revealing the information about the details of photosynthesis, Gust encourages people to investigate and to develop the innovated techniques thus applying them to the problem solution in the different spheres of life.
  • Photosynthesis Rate Determination From the Oxygen Gas Evolution The results showed that the rate of release of oxygen determined the rate of rising of the leaf segment subject to utilization of carbon dioxide proving that the evolution of oxygen could be used to […]
  • Photosynthesis and Cellular Respiration The reactants of the respiration are glucose circulating in the blood and oxygen obtained from breathing, while the product is ATP.
  • The Photosynthesis Rate of Waterweed In this experiment, it was hypothesized that the rate of photosynthesis rises with an increase in the concentration of carbon dioxide and went on to test the hypothesis.
  • Environmental Studies: Photosynthesis Concept Similarly, the effect of carbon dioxide and light intensity on the rate of photosynthesis was also measured by varying the concentration and distance of carbon dioxide respectively.
  • Comparing Photosynthesis and Cellular Respiration
  • How Light Intensity Affects the Rate of Photosynthesis
  • The Connection Between Carbon Dioxide and the Rate of Photosynthesis
  • Could Earth Survive With Artificial Photosynthesis
  • Light-Dependent and Light-Independent Reactions of Photosynthesis
  • Differences and Similarities Between Respiration and Photosynthesis
  • How Different Coloured Rays of Light Affect Photosynthesis
  • Factors Affecting the Rate of Photosynthesis in Leafs
  • General Information About Hydrilla and Photosynthesis
  • How Are the Reactants and Products of Photosynthesis
  • How Can the Light Reactions of Photosynthesis Be Improved in Plants
  • The Evolution of Oxygen-Releasing Photosynthesis
  • How Does Photosynthesis Affect Our Own
  • Interactions Between Circadian Clocks and Photosynthesis
  • The Limiting Factors of Photosynthesis
  • Investigating the Chemical Equation for Photosynthesis
  • Photosynthesis: Adenosine Triphosphate and Energy
  • Photosynthesis and Its Effect on the Environment
  • Components of Natural Photosynthetic Apparatus in Solar Cells
  • Photosynthesis: Process That Converts Light Energy Organisms Into Chemical Energy
  • The Basic Needs for Photosynthesis
  • The Environmental Effects and Limitations of Drought on Photosynthesis
  • The Experiment That Led to the Discovery of Photosynthesis
  • The Floating Leaf Disk Assay for Investigating Photosynthesis
  • The Stages and Special Conditions Needed for Photosynthesis
  • What Are the Chemical Products of Photosynthesis
  • The Investigation of the Color of Light and Its Effect on Photosynthesis
  • What Role Does Molecular Oxygen Play in Photosynthesis
  • Investigation of How Light Affects Photosynthesis
  • Finding the Factor That Can Increase the Rate of Photosynthesis
  • An In-Depth Overview of the Process of Photosynthesis in Plants
  • Experimenting on the Rate of Photosynthesis in Chloroplasts
  • The Features of the Process of Photosynthesis
  • The Positive Charges of Electron and Intercellular Fluid in the Photosynthesis
  • The Determination of Rates of Photosynthesis Through Chloroplasts
  • The Impact of Different Types of Environments on Photosynthesis
  • The Process of Marine Photosynthesis and Factors Affecting It
  • Peculiarities of Photosynthesis of Sugar Plants
  • Photosynthesis Concept, Equation & Steps
  • How Does Photosynthesis Yield Sugar
  • Why Is Photosynthesis Important?
  • Who Discovered Photosynthesis?
  • Why Is Photosynthesis Good for Plants?
  • What Factors Affect Photosynthesis?
  • Why Is It Impossible to Create Photosynthesis in Artificial Conditions?
  • In Which Plant Organs Does Photosynthesis Take Place?
  • What Are the Different Stages of Photosynthesis?
  • Can Photosynthesis Happen Without Light?
  • Why Is It Not Possible for Humans to Photosynthesize?
  • What Is the Primary Purpose of Photosynthesis?
  • What Are the Products of Photosynthesis?
  • What Is Rate of Photosynthesis?
  • Where Does the Energy for Photosynthesis Come From?
  • Which Organelle Is Responsible for Photosynthesis?
  • What Are the Main Steps of Photosynthesis?
  • How Does Photosynthesis Yield Sugar?
  • What Are the Developmental Stages of Photosynthesis?
  • How Carbon Dioxide Can Affect the Rate of Photosynthesis?
  • Why Can Photosynthesis Not Occur at Very High Temperatures?
  • What Would Happen if Photosynthesis Stopped Happening on Earth?
  • What Is the Maximum Temperature for Photosynthesis?
  • Which Element Increases Photosynthesis in Plant?
  • Which Plants Do Photosynthesis at Night?
  • What Gas Is Released During Photosynthesis?
  • How Are the Reactants and Products of Photosynthesis?
  • How Can the Light Reactions of Photosynthesis Be Improved in Plants?
  • How Did the Evolution of Oxygen-Releasing Photosynthesis?
  • Sugar Paper Topics
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Essay Samples on Photosynthesis

Importance of photosynthesis: unveiling the foundation of life on earth.

Photosynthesis, the remarkable process that occurs in plants and some microorganisms, holds immense significance for life on Earth. It is the driving force behind the production of oxygen, the conversion of sunlight into energy, and the foundation of Earth's intricate food webs. This essay delves...

  • Photosynthesis

Photosynthesis and Cellular Respiration: Learning Theories and Applications

I am going to teach my students about the cellular processes of photosynthesis and cellular respiration. In thiss essay I will explain how I am planning to teach my students. In order for meaningful learning to occur, I will need to engage my students through...

  • Cellular Respiration

The Process Of Photosynthesis Of The Invasive Species

'The spatial patterning, structure, and functioning of most of the ecosystems of the world have been altered by the activities of humankind' (Mooney and Cleland). Essentially, each individual ecosystem holds a fragile place in the world and must maintain a perfect balance with today’s society....

  • Invasive Species

Invasive Species: The Types Of Species In Synthesis

Invasive species can be described as any living organism, that overtakes a foreign area. They are not native to the ecosystem and can potentially cause harm. Some examples include, plants, fungi, insects, or amphibians. In relation to the Humber River field trip, the issue of...

The Colored Effect On Photosynthesis

Abstract Photosynthesis plays a big role in the environment in everyday life. This experiment was done to see if an environmental factor affected the rate of photosynthesis. Scenedesmus obliquus algal beads were used as the primary source to receive photosynthesis. For this experiment, two different...

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The Effects Of Colored Light On Photosynthesis

Introduction Photosynthesis is the process in which energy from sunlight is converted into chemical energy or simple carbohydrate. This chemical energy is the base for all food chains and its byproduct of oxygen provides a habitable environment for all living things on Earth. The process...

Growing Plants on Another Planet with the Help of Simulated Photosynthesis

In this essay i am going to talk about a questions that I ask myself that is “can we grow plants in another planet?” It is a subject that makes many points to treat because depend of several factors. Maybe you will ask yourself why...

Manipulation of Photosynthesis Using Various Methods

Abstract These experiments in this study was to show how significant it is for plants to receive all its inputs, so it can produce all its outputs in photosynthesis. Our initial hypothesis was correct for all three experiments, because we predicted that the change in...

Photosynthesis as an Essential to Life

Abstract The purpose of this experiment is to gain insight about how photosynthesis occurs and when the process of photosynthesis is the most efficient. The hypothesis being tested in this experiment is: if the light is greater than 5000 Lux, then the rate of photosynthesis...

Photosynthetic Rates of S. Obliquus After Exposure to Different Light Colors

Abstract The purpose of this experiment was to compare the rate of photosynthesis of algal beads in carbon dioxide (CO2) indicator using a red cellophane wrapped lamp and a normal lamp as the light source. The algal beads were separated equally, placed in cuvettes, and...

Thin Layer Chromotagraphy on Spinach Leaf Pigment Extracts

Introduction The objective of this experiment is to extract pigments from spinach leaves and perform Thin Layer Chromatography (TLC) on the spinach leaf extract. We will also determine the best solvent mixture to use to separate the pigments. This experiment is designed to find the...

  • Chromatography

Best topics on Photosynthesis

1. Importance of Photosynthesis: Unveiling the Foundation of Life on Earth

2. Photosynthesis and Cellular Respiration: Learning Theories and Applications

3. The Process Of Photosynthesis Of The Invasive Species

4. Invasive Species: The Types Of Species In Synthesis

5. The Colored Effect On Photosynthesis

6. The Effects Of Colored Light On Photosynthesis

7. Growing Plants on Another Planet with the Help of Simulated Photosynthesis

8. Manipulation of Photosynthesis Using Various Methods

9. Photosynthesis as an Essential to Life

10. Photosynthetic Rates of S. Obliquus After Exposure to Different Light Colors

11. Thin Layer Chromotagraphy on Spinach Leaf Pigment Extracts

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Question: write a 200 word essay about how in photosynthesis, contrast the light reactions with the light independent reactions, in terms of goals, inputs, and outputs of each. Spatially where do they take place (which parts of the chloroplast)? please no plagraism

write a 200 word essay about how in photosynthesis, contrast the light reactions with the light independent reactions, in terms of goals, inputs, and outputs of each. Spatially where do they take place (which parts of the chloroplast)? please no plagraism

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Home — Essay Samples — Science — Photosynthesis — Photosynthesis and Cellular Respiration

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Photosynthesis and Cellular Respiration

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Published: Feb 12, 2019

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Table of contents

Prompt examples for the "photosynthesis" essays, photosynthesis essay example, works cited.

  • The Process of Photosynthesis: Breaking It Down Explain the process of photosynthesis in detail, breaking down each step, the key resources involved (light energy, carbon dioxide, water), and the outcomes (glucose and oxygen). How does photosynthesis enable plants to create their own food?
  • Photosynthesis vs. Cellular Respiration: Understanding the Differences Compare and contrast photosynthesis and cellular respiration. What are the key distinctions between these two processes? How do plants use these processes differently, and why is it essential for plants to perform photosynthesis during the day and cellular respiration at night?
  • The Importance of Photosynthesis for Plant Survival Discuss the critical role of photosynthesis in a plant's survival. How does it provide plants with the necessary energy and nutrients? Explore the potential consequences if a plant were unable to perform photosynthesis.
  • Common Misconceptions About Photosynthesis Address common misconceptions or incorrect claims about photosynthesis, such as those mentioned by Mika in the essay. Provide clear explanations to refute these misconceptions and offer accurate information about when photosynthesis and cellular respiration occur in plant cells.
  • The Energy Acquisition Strategies of Plants and Animals Compare how plants and animals acquire and utilize energy. Explain the fundamental differences in their energy sources and processes. Why do plants rely on photosynthesis, while animals need to consume other organisms for energy?
  • Alberts, B., Johnson, A., Lewis, J., Raff, M., Roberts, K., & Walter, P. (2014). Molecular Biology of the Cell. Garland Science.
  • Campbell, N. A., & Reece, J. B. (2017). Biology. Pearson.
  • Cox, M. M., & Doudna, J. A. (2017). Principles of Molecular Biology. W. H. Freeman.
  • Freeman, S., Quillin, K., Allison, L., Black, M., Taylor, E., & Podgorski, G. (2017). Biological Science. Pearson.
  • Lodish, H., Berk, A., Zipursky, S. L., Matsudaira, P., Baltimore, D., & Darnell, J. (2016). Molecular Cell Biology. W. H. Freeman.
  • National Science Teachers Association. (2016). Photosynthesis and cellular respiration. NSTA.
  • Raven, P. H., Evert, R. F., & Eichhorn, S. E. (2017). Biology of Plants. W. H. Freeman.
  • Reece, J. B., Urry, L. A., Cain, M. L., Wasserman, S. A., Minorsky, P. V., & Jackson, R. B. (2014). Campbell Biology. Pearson.
  • Sadava, D. E., Hillis, D. M., Heller, H. C., & Berenbaum, M. R. (2014). Life: The Science of Biology. W. H. Freeman.
  • Taiz, L., & Zeiger, E. (2013). Plant Physiology. Sinauer Associates.

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  • Biology Article

Photosynthesis

Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.

photosynthesis essay 200 words

Table of Contents

  • What is Photosynthesis?
  • Site of photosynthesis

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What Is Photosynthesis in Biology?

The word “ photosynthesis ” is derived from the Greek words  phōs  (pronounced: “fos”) and σύνθεσις (pronounced: “synthesis “) Phōs means “light” and σύνθεσις   means, “combining together.” This means “ combining together with the help of light .”

Photosynthesis also applies to other organisms besides green plants. These include several prokaryotes such as cyanobacteria, purple bacteria and green sulfur bacteria. These organisms exhibit photosynthesis just like green plants.The glucose produced during photosynthesis is then used to fuel various cellular activities. The by-product of this physio-chemical process is oxygen.

Photosynthesis Reaction

A visual representation of the photosynthesis reaction

  • Photosynthesis is also used by algae to convert solar energy into chemical energy. Oxygen is liberated as a by-product and light is considered as a major factor to complete the process of photosynthesis.
  • Photosynthesis occurs when plants use light energy to convert carbon dioxide and water into glucose and oxygen. Leaves contain microscopic cellular organelles known as chloroplasts.
  • Each chloroplast contains a green-coloured pigment called chlorophyll. Light energy is absorbed by chlorophyll molecules whereas carbon dioxide and oxygen enter through the tiny pores of stomata located in the epidermis of leaves.
  • Another by-product of photosynthesis is sugars such as glucose and fructose.
  • These sugars are then sent to the roots, stems, leaves, fruits, flowers and seeds. In other words, these sugars are used by the plants as an energy source, which helps them to grow. These sugar molecules then combine with each other to form more complex carbohydrates like cellulose and starch. The cellulose is considered as the structural material that is used in plant cell walls.

Where Does This Process Occur?

Chloroplasts are the sites of photosynthesis in plants and blue-green algae.  All green parts of a plant, including the green stems, green leaves,  and sepals – floral parts comprise of chloroplasts – green colour plastids. These cell organelles are present only in plant cells and are located within the mesophyll cells of leaves.

Also Read:  Photosynthesis Early Experiments

Photosynthesis Equation

Photosynthesis reaction involves two reactants, carbon dioxide and water. These two reactants yield two products, namely, oxygen and glucose. Hence, the photosynthesis reaction is considered to be an endothermic reaction. Following is the photosynthesis formula:

Unlike plants, certain bacteria that perform photosynthesis do not produce oxygen as the by-product of photosynthesis. Such bacteria are called anoxygenic photosynthetic bacteria. The bacteria that do produce oxygen as a by-product of photosynthesis are called oxygenic photosynthetic bacteria.

Structure Of Chlorophyll

Structure of chlorophyll

The structure of Chlorophyll consists of 4 nitrogen atoms that surround a magnesium atom. A hydrocarbon tail is also present. Pictured above is chlorophyll- f,  which is more effective in near-infrared light than chlorophyll- a

Chlorophyll is a green pigment found in the chloroplasts of the  plant cell   and in the mesosomes of cyanobacteria. This green colour pigment plays a vital role in the process of photosynthesis by permitting plants to absorb energy from sunlight. Chlorophyll is a mixture of chlorophyll- a  and chlorophyll- b .Besides green plants, other organisms that perform photosynthesis contain various other forms of chlorophyll such as chlorophyll- c1 ,  chlorophyll- c2 ,  chlorophyll- d and chlorophyll- f .

Also Read:   Biological Pigments

Process Of Photosynthesis

At the cellular level,  the photosynthesis process takes place in cell organelles called chloroplasts. These organelles contain a green-coloured pigment called chlorophyll, which is responsible for the characteristic green colouration of the leaves.

As already stated, photosynthesis occurs in the leaves and the specialized cell organelles responsible for this process is called the chloroplast. Structurally, a leaf comprises a petiole, epidermis and a lamina. The lamina is used for absorption of sunlight and carbon dioxide during photosynthesis.

Structure of Chloroplast

Structure of Chloroplast. Note the presence of the thylakoid

“Photosynthesis Steps:”

  • During the process of photosynthesis, carbon dioxide enters through the stomata, water is absorbed by the root hairs from the soil and is carried to the leaves through the xylem vessels. Chlorophyll absorbs the light energy from the sun to split water molecules into hydrogen and oxygen.
  • The hydrogen from water molecules and carbon dioxide absorbed from the air are used in the production of glucose. Furthermore, oxygen is liberated out into the atmosphere through the leaves as a waste product.
  • Glucose is a source of food for plants that provide energy for  growth and development , while the rest is stored in the roots, leaves and fruits, for their later use.
  • Pigments are other fundamental cellular components of photosynthesis. They are the molecules that impart colour and they absorb light at some specific wavelength and reflect back the unabsorbed light. All green plants mainly contain chlorophyll a, chlorophyll b and carotenoids which are present in the thylakoids of chloroplasts. It is primarily used to capture light energy. Chlorophyll-a is the main pigment.

The process of photosynthesis occurs in two stages:

  • Light-dependent reaction or light reaction
  • Light independent reaction or dark reaction

Stages of Photosynthesis

Stages of Photosynthesis in Plants depicting the two phases – Light reaction and Dark reaction

Light Reaction of Photosynthesis (or) Light-dependent Reaction

  • Photosynthesis begins with the light reaction which is carried out only during the day in the presence of sunlight. In plants, the light-dependent reaction takes place in the thylakoid membranes of chloroplasts.
  • The Grana, membrane-bound sacs like structures present inside the thylakoid functions by gathering light and is called photosystems.
  • These photosystems have large complexes of pigment and proteins molecules present within the plant cells, which play the primary role during the process of light reactions of photosynthesis.
  • There are two types of photosystems: photosystem I and photosystem II.
  • Under the light-dependent reactions, the light energy is converted to ATP and NADPH, which are used in the second phase of photosynthesis.
  • During the light reactions, ATP and NADPH are generated by two electron-transport chains, water is used and oxygen is produced.

The chemical equation in the light reaction of photosynthesis can be reduced to:

2H 2 O + 2NADP+ + 3ADP + 3Pi → O 2 + 2NADPH + 3ATP

Dark Reaction of Photosynthesis (or) Light-independent Reaction

  • Dark reaction is also called carbon-fixing reaction.
  • It is a light-independent process in which sugar molecules are formed from the water and carbon dioxide molecules.
  • The dark reaction occurs in the stroma of the chloroplast where they utilize the NADPH and ATP products of the light reaction.
  • Plants capture the carbon dioxide from the atmosphere through stomata and proceed to the Calvin photosynthesis cycle.
  • In the Calvin cycle , the ATP and NADPH formed during light reaction drive the reaction and convert 6 molecules of carbon dioxide into one sugar molecule or glucose.

The chemical equation for the dark reaction can be reduced to:

3CO 2 + 6 NADPH + 5H 2 O + 9ATP → G3P + 2H+ + 6 NADP+ + 9 ADP + 8 Pi

* G3P – glyceraldehyde-3-phosphate

Calvin cycle

Calvin photosynthesis Cycle (Dark Reaction)

Also Read:  Cyclic And Non-Cyclic Photophosphorylation

Importance of Photosynthesis

  • Photosynthesis is essential for the existence of all life on earth. It serves a crucial role in the food chain – the plants create their food using this process, thereby, forming the primary producers.
  • Photosynthesis is also responsible for the production of oxygen – which is needed by most organisms for their survival.

Frequently Asked Questions

1. what is photosynthesis explain the process of photosynthesis., 2. what is the significance of photosynthesis, 3. list out the factors influencing photosynthesis., 4. what are the different stages of photosynthesis, 5. what is the calvin cycle, 6. write down the photosynthesis equation..

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photosynthesis essay 200 words

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Please What Is Meant By 300-400 PPM

PPM stands for Parts-Per-Million. It corresponds to saying that 300 PPM of carbon dioxide indicates that if one million gas molecules are counted, 300 out of them would be carbon dioxide. The remaining nine hundred ninety-nine thousand seven hundred are other gas molecules.

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COMMENTS

  1. Essay on Photosynthesis - AspiringYouths

    Photosynthesis is a key part of the cycle of life on Earth. By making food and oxygen, plants support life for all creatures. When animals eat plants, they get the energy from the plants, and when animals breathe, they use the oxygen that plants release. It’s a beautiful cycle that keeps the planet alive. 500 Words Essay on Photosynthesis

  2. Photosynthesis And Respiration Similarities - 200 Words ...

    The Stages of Cellular Respiration and Photosynthesis Essay Photosynthesis occurs each time the sun’s light reaches the lives of a plant. The chemical ingrediants for photosynthesis are carbon dioxide (CO2), a gas that passes from the air into a plant via tiny pores, and water (H20), which absorbed from the soil by the plant’s roots.

  3. Photosynthesis Essay - Free Essay Example - Edubirdie

    Photosynthesis is a remarkable example of the intricacies of nature, as plants ingeniously convert sunlight into energy that sustains life. The process occurs within chloroplasts, with photosystems playing a central role in capturing light energy.

  4. ≡Essays on Photosynthesis. Free Examples of Research Paper ...

    1 page / 521 words. Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

  5. 84 Photosynthesis Essay Topic Ideas & Examples - IvyPanda

    Biology: Photosynthesis and Respiration. In this process molecules of carbon dioxide gas and water are combined in the presence of the solar energy and chemical energy is formed. We will write a custom essay specifically for you by our professional experts. 185 writers online.

  6. Photosynthesis Essays: Samples & Topics - WritingBros

    Photosynthesis, the remarkable process that occurs in plants and some microorganisms, holds immense significance for life on Earth. It is the driving force behind the production of oxygen, the conversion of sunlight into energy, and the foundation of Earth's intricate food webs. This essay delves... Photosynthesis. Plant.

  7. Essay on Photosynthesis in Plants - Biology Discussion

    The history of photosynthesis dates back to about 1648 when a Dutchman Van Helmont planted a 5 pounds willow shoot in 200 pounds of dried soil. After 5 years of watering with rain water the willow tree weighed 169 pounds. When the soil was dried and again re- weighed, it was found to have lost only 2 ounces.

  8. Solved write a 200 word essay about how in photosynthesis ...

    Biology questions and answers. write a 200 word essay about how in photosynthesis, contrast the light reactions with the light independent reactions, in terms of goals, inputs, and outputs of each. Spatially where do they take place (which parts of the chloroplast)? please no plagraism.

  9. Photosynthesis and Cellular Respiration: [Essay Example], 573 ...

    The photosynthesis equation is CO2 (carbon dioxide)+H2O (water)+light energy=C6H12O6 (glucose) & O2 (oxygen). Cellular respiration is a process plants use at night for energy. This happens in the mitochondria’s of plant cells. The resources needed for this are energy, carbon dioxide, water, and heat. Cellular respiration is the inverse of ...

  10. Photosynthesis - Definition, Process, and Diagrams - BYJU'S

    Photosynthesis. Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide. 3,12,343.