AP Bio Insta-Review Topic 3.5*: Photosynthesis

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What is photosynthesis?

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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.

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Where did photosynthesis originate?

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Photosynthesis originated in cyanobacteria.

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True or False: Earth included oxygen when it was first formed.

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False.

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What are light-dependent reactions?

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Light-dependent reactions are the first stage of photosynthesis where light is absorbed to synthesize ATP and NADPH.

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What is the Calvin Cycle?

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The Calvin Cycle is the second stage of photosynthesis where carbon dioxide is fixed and converted into glucose (G3P) using ATP and NADPH.

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How many carbon dioxides are used in the Calvin Cycle?

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Three carbon dioxides are used in the Calvin Cycle.

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What is the role of chlorophyll in photosynthesis?

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Chlorophyll is a pigment in plants that absorbs light energy, primarily in the blue and red wavelengths, which is essential for photosynthesis.

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What are the main products of photosynthesis?

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The main products of photosynthesis are glucose and oxygen.

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What is the equation for photosynthesis?

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

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What is the significance of photosynthesis to life on Earth?

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