James Hurston


Photosynthesis is the process of capturing light energy, converting it to chemical energy, and storing it by manufacturing sugar.

What is photosyntheis

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

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How does it work

Photosynthesis can happen in plants because they have chlorophyll. Chlorophyll is the pigment that makes plants green. Chlorophyll captures the Sun's energy and uses it to make sugars out of carbon dioxide from the air and water. The sugars fuel a plant's roots, stems, and leaves so the plant can grow.

Part 1

Chlorophyll and carotenoids absorb light. Water is split into oxygen and hydrogen. This step is called Absorption.

Part 2

Movement of hydrogen across the thylakoids makes energy to produce ATP and NADPH.

This step is called E.T.C (Electron Transport Chain).

Part 3

Enter as carbon dioxide and leaves as sugar and oxygen.

This step is called the Calvin Cycle.


A plastid that contains chlorophyll and in which photosynthesis takes place.
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