Photosynthesis and Cellular Respiration Vocabulary

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Chloroplast

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An organelle found in plant cells where photosynthesis occurs.

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Chlorophyll

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A green pigment found in chloroplasts that absorbs light energy for photosynthesis.

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Stomata

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Small openings on the surface of leaves that allow for gas exchange.

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Reactant

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A substance that takes part in and undergoes change during a reaction.

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Photosynthesis

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The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

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Respiration

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The process of breaking down glucose to produce energy, which can be aerobic or anaerobic.

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Glycolysis

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The first step in cellular respiration, where glucose is broken down in the cytoplasm to form pyruvate.

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Light Reactions

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The phase of photosynthesis where light energy is converted into chemical energy in the form of ATP and NADPH.

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ATP

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Adenosine triphosphate, a molecule that carries energy within cells. It is produced during the light reactions of photosynthesis and used in the Calvin cycle.