In a nutshell, photosynthesis is the process by which a plant turns carbon dioxide and water into sugar (glucose) and oxygen, using energy from sunlight (6CO2 + 6H2O –> C6H12O6 + 6O2). Photosynthesis takes place in organelles called chloroplasts, usually in the plant’s leaves.
Chloroplasts contain chlorophyll, the pigment which both absorbs sunlight and makes plants green. In the first phase of photosynthesis, the plant converts the sun’s energy into ATP and NADPH (this part of the process also involves the splitting of water molecules, which creates oxygen). In the second phase, the ATP and the NADPH react with carbon dioxide (which is absorbed through stomates, or pores, in the leaf) to form glucose.
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