Question

what is photosynthesis?
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O mohtarma kon ho aap
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Answer 1

Answer:

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Answer 2

Definition of photosynthesis –

The process of making food by Green plants (autotroph) is called photosynthesis. For performing photosynthesis water, sunlight and carbon dioxide are used by the plants. They take sunlight from sun, water from soil and carbon dioxide gas from the air present around use. The leaves have small holes called stomach which allows air to enter the plant. Leaves also contains chlorophyll in them which traps Sunlight and helps in making food. Roots of plants absorbs water and minerals from the soil and transfers them leaves through stem.

• The chemical equation for the photosynthesis is –

Carbon dioxide + water —> glucose + oxygen + energy

• Photosynthesis is the process by which living plants cell which contains chlorophyll, produce food substance like glucose and starch from carbon dioxide and water by using light energy.

• It provides food for all living beings including animals and humans.

• It provides us oxygen to breathe in by releasing oxygen into the atmosphere.

• Photosynthesis can occur in two phases.

1. Light Reaction
2. Dark Reaction

• Light reaction traps the energy by using chlorophyll and use that energy in splitting water molecules into hydrogen and oxygen which is called photolysis.

• Dark reaction transfer the hydrogen from NADPH through a series of chemical reactions to combine with carbon dioxide to produce glucose by using energy from ATP.