The diagram of photosynthesis in plants elaborates on the process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The diagram of photosynthesis class 10 shows this process visually which helps in understanding plant biology. Green plants, algae, and some bacteria use this process of photosynthesis to make food in the form of sugar.

The diagram of photosynthesis with labeling is given below:

Diagram of Photosynthesis

What is Photosynthesis?

Definition: It is the process by which green plants and some other organisms use sunlight to synthesise nutrients from carbon dioxide and water.

The diagram of photosynthesis shows the process of converting light energy into chemical energy in green plants and other animals. Water, carbon dioxide, and minerals are converted into oxygen and energy-rich organic molecules using light energy acquired during photosynthesis. Plants, algae, and some microorganisms transform light energy into chemical energy through photosynthesis.

The photosynthesis reaction is given below:

6CO₂ + 6H₂O + light → C₆H₁₂O₆ + 6O₂

Process of Photosynthesis

Chloroplasts are involved in the process of photosynthesis. The green pigment, chlorophyll, present in them give leaves their distinctive green colour. During photosynthesis, the lamina of the leaf absorbs carbon dioxide and sunlight.

The process of photosynthesis occurs in two stages:

1. Light-dependent reaction or light reaction
2. Light independent reaction or dark reaction

Light Reaction of Photosynthesis (or) Light-Dependent Reaction

The light response, which only occurs throughout the day when sunlight is present, is the first step of photosynthesis. It occurs in thylakoid membranes of chloroplasts. Photosystems, which are membrane-bound sac-like structures found inside thylakoids, are responsible for collecting light. Photosystems come in two varieties: Photosystem I and Photosystem II.

In the light-dependent reactions, light energy is transformed into NADPH and ATP, which are needed for photosynthesis’ second stage. Two electron-transport chains, water, and ATP are produced during the light reactions.

2H₂O + 2NADP+ + 3ADP + 3Pi → O₂ + 2NADPH + 3ATP

Also Read: What Is Light Dependent Reaction?

Dark Reaction of Photosynthesis (or) Light-Independent Reaction

Another name for dark reaction is carbon-fixing reaction. Sugar molecules are created from water and carbon dioxide molecules in a process that is light-independent. Using the NADPH and ATP from the light reaction, the dark reaction takes place in the chloroplast’s stroma. Six carbon dioxide molecules are converted into one sugar molecule, or glucose, by the Calvin cycle, which is fueled by the ATP and NADPH produced during the light reaction. The dark reaction’s chemical equation is as follows:

3CO₂ + 6 NADPH + 5H₂O + 9ATP → G3P + 2H⁺ + 6 NADP⁺ + 9 ADP + 8 Pi

Also Read: Cyclic and Non-cyclic Photo-phosphorylation

Factors Affecting Photosynthesis

The diagram of photosynthesis process shows the need of several things, including:

• Light Intensity: A higher rate of photosynthesis is the outcome of increased light intensity.
• Amount of CO₂ present: The rate of photosynthesis is aided by higher carbon dioxide concentrations.
• Temperature: A temperature range of 25° to 35° C is critical for the effective execution of photosynthesis.
• Water: Lack of water might cause issues with the absorption of carbon dioxide since it is a crucial component of photosynthesis. Water scarcity causes stomatal openings to refuse to hold onto the water they have stored inside of them.
• Pollution: The surface of leaves may become coated in particles and industrial contaminants.

Also Read: Factors Affecting Photosynthesis

Conclusion – Diagram of Photosynthesis

For any life to exist on Earth, photosynthesis is necessary. The diagram of photosynthesis shows how plants make their food. The process of photosynthesis is also in charge of producing oxygen, which is essential for the existence of most living things. Photosynthesis involves two phases- light phase and the dark phase. A lot of factors affect the rate of photosynthesis which are light, carbon dioxide levels, water, etc.

Also Read:

• Where are the Atp and Nadph Used?
• Calvin Cycle Notes Class 11
• C4 Cycle of Photosynthesis

FAQs on Diagram of Photosynthesis

What is Photosynthesis With Diagram? 

Photosynthesis is a biological process utilized by all green plants to synthesize their own nutrients. The process of photosynthesis requires solar energy, water and carbon dioxide. The by-product of this process is oxygen.

What is the Significance of Photosynthesis?

During photosynthesis, oxygen gas is liberated out into the environment and is utilized by humans, animals and other living species during the process of respiration.

List out the Factors Influencing Photosynthesis.

There are several factors that affect the rate of photosynthesis. Light intensity, water, soil pH, carbon dioxide concentration, temperature and other climatic conditions are the main factors affecting the rate of photosynthesis.

What is the Formula for the Photosynthesis Diagram?

Six molecules of water react with six molecules of carbon dioxide to form one molecule of glucose. The balanced equation is as follows:

6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂

How Long Does it Take for Photosynthesis to Happen?

Photosynthesis happens the entire day and is a continuous process. The light reaction occurs during the day and the dark reaction occurs during the night.

Explain the Diagram of Photosynthesis for Class 6?

The diagram of photosynthesis shows how plants utilize light energy to convert carbon dioxide and water into glucose and oxygen. The process occurs in chloroplast.