AP Bio Insta-Review Topic 3.5: Photosynthesis

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What is the main function of Rubisco in photosynthesis?

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Rubisco is the enzyme that catalyzes the first step of carbon fixation in the Calvin Cycle, converting carbon dioxide into organic molecules.

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What are the light-dependent reactions of photosynthesis?

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The light-dependent reactions are the first stage of photosynthesis where light energy is absorbed to produce ATP and NADPH.

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Where do the light-dependent reactions occur?

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The light-dependent reactions occur in the thylakoid membranes of the chloroplasts.

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What is photolysis and where does it occur?

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Photolysis is the process of splitting water molecules using light energy, occurring in Photosystem II during the light-dependent reactions.

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What is the Calvin Cycle?

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The Calvin Cycle is the set of light-independent reactions in photosynthesis that convert carbon dioxide into glucose using ATP and NADPH.

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What is the role of ATP in photosynthesis?

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ATP provides the energy required for the Calvin Cycle to synthesize glucose from carbon dioxide.

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What is NADPH and its role in photosynthesis?

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NADPH is an electron carrier that provides reducing power for the Calvin Cycle to convert carbon dioxide into organic compounds.

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What is the significance of chlorophyll in photosynthesis?

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Chlorophyll is the pigment that absorbs light energy, primarily in the blue and red wavelengths, and is essential for the light-dependent reactions.

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What is the overall equation for photosynthesis?

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6CO2 + 6H2O + light energy -> C6H12O6 + 6O2.

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What is the source of oxygen produced during photosynthesis?

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The oxygen produced during photosynthesis comes from the photolysis of water molecules.