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13 Cards in this Set
- Front
- Back
accessory pigments
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Photosynthetic pigments other than the chlorophylls that enable an organisms to use more colors of the visible light spectrum for photosynthesis (e.g., carotenoids [yellow, red and orange]; phycoerythrins [red]; and phycocyanin [blue]).
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Calvin cycle
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A cyclic sequence of reactions that make up the light-independent reactions stage of photosynthesis.
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chlorophyll |
The green pigment located in the chloroplasts of plant cells associated with trapping light energy.
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glyceraldehyde-3-phosphate |
a 3-carbon compound, produced during glycolysis and photosynthesis, that can be converted to other organic molecules.
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grana |
stakes of sacs of the chloroplast membrane (thylakoids) where chlorophyll molecules are concentrated. |
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light-capturing events |
The first stage in photosynthesis; involves photosynthetic pigment capturing light energy in the form of excited electrons.
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light-dependent reactions
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the second stage in photosynthesis, during which excited electrons form the light-capturing events are used to make ATP, and water is broken down to hydrogen and oxygen, the hydrogen's are transferred to electron carrier coenzymes, NADP+
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light-independent reactions |
The third stage of phyotosynthesis; involves cells using ATP and NADPH from the light-dependent raactions to attach CO₂ to 5-carbon starter molecules to manufacture organic molecules (e.g., glucose [C₆H₁₂O₆]
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photosystems |
Clusters of photosynthetic pigments (e.g., chlorophyll) that serve as energy-gathering or energy-concentrating mechanisms; used during the light capturing events of photosynthesis.
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ribulose |
A 5-carbon sugar molecule used in photosynthesis.
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Ribulose-1, 5-Biosphosphate carboxylase oxygenase (RuBisCo) |
an enzyme found in the stroma of chloroplast the combining of the CO₂ with and already present 5-carbon carbohydrate, ribulose.
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stroma
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The region within a chloroplast that has no chlorophyll. |
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thylakoids
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A membranous sac found within chloroplasts of plant cells that contains chlorophyll and is the site of the light-capturing events and the light-dependent reactions of photosynthesis; a stack of thylakoids is know as a granum.
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