Understanding Photosynthesis

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Photosynthesis

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Process by which green plants convert light energy into chemical energy

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Chlorophyll

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Green pigment in plants that absorbs light energy for photosynthesis

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Light-dependent reactions

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First stage of photosynthesis, occurs in thylakoid membranes, produces ATP and NADPH

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Calvin Cycle

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Light-independent reactions, occurs in stroma, uses ATP and NADPH to synthesize glucose

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Equation for photosynthesis

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6CO2 + 6H2O + light → C6H12O6 + 6O2

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Thylakoid

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Membrane-bound compartment inside chloroplasts, site of light-dependent reactions

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Stroma

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Fluid-filled space surrounding thylakoids in chloroplasts, site of Calvin Cycle

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ATP

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Adenosine triphosphate, energy currency of the cell, produced in light-dependent reactions

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NADPH

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Electron carrier, provides high-energy electrons for the Calvin Cycle

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Carbon fixation

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Process of converting inorganic CO2 into organic compounds during the Calvin Cycle