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18 Cards in this Set
- Front
- Back
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autotrophs
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organisms that use energy in organic substances to make organic compounds
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photosynthesis
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process by which most autotrophs convert light energy into chemical energy [organic compounds]
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heterotrophs
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organisms that must get energy from food instead of directly from sunlight or inorganic substances
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biochemical pathway
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series of chemical reactions in which the product of one reaction is consumed in the next
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chloroplast
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organelle in the cells of plants and algae that absorb light
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thylakoids
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system of membranes within the inner chloroplast membrane arranged as flattened sacs
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grana
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stacks of thylakoids
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stroma
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solution that surrounds the grana
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pigments
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compounds that absorb light
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visible spectrum
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array of colors ranging from red to violet
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chlorophyll
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pigment in the thylakoid membrane with types a b and c
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chlorophyll a
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type of chlorophyll directly involved in the light reactions of photosynthesis
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chlorophyll b
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assists chlorophyll a in capturing light energy
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carotenoids
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accesory pigments
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photosystem
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each cluster of pigment molecules and the proteins that they are embedded in
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primary electron acceptor
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the acceptor of electrons lost from chlorophyll a
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electron transport chain
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series of molecules located in the thylakoid membrane that transfer electrons
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chemiosmosis
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the synthesis of ATP
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