Photosynthesis

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.

Front

What are the two main stages of photosynthesis?

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The two main stages of photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin Cycle).

Front

What is the role of chlorophyll in photosynthesis?

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Chlorophyll is a green pigment found in plants that absorbs light energy, primarily from the blue and red wavelengths, and reflects green light.

Front

What is produced during the light-dependent reactions?

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The light-dependent reactions produce ATP, NADPH, and oxygen as a byproduct.

Front

What is the Calvin Cycle?

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The Calvin Cycle, also known as the light-independent stage, is the process in which carbon dioxide is fixed into glucose using ATP and NADPH produced in the light-dependent reactions.

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Why do most plants appear green?

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Most plants appear green because chlorophyll does not absorb green light; instead, it reflects it.

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What are the reactants of photosynthesis?

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The reactants of photosynthesis are carbon dioxide (CO2) and water (H2O).

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What are the products of photosynthesis?

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The products of photosynthesis are glucose (C6H12O6) and oxygen (O2).

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What type of organisms perform photosynthesis?

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Only autotrophs, such as plants and some algae, perform photosynthesis.

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What is the significance of photosynthesis in the ecosystem?

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Photosynthesis is crucial for life on Earth as it produces oxygen and organic compounds that serve as food for heterotrophs.