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19 Cards in this Set
- Front
- Back
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Autotrophs |
Organisms that produce their own food/sugars from harvesting energy. Literal meaning- Self nourishment. Obtains from inorganic molecules, ex. CO2. |
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Heterotrophs |
Gain CO2 by breaking down organic molecules. Literal meaning- Other nourishment. |
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Wavelength |
Distance between crests of to successive waves |
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Pigment |
Organic molecule that selectively absorbs light of specific wavelengths. |
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Chlorophyll a |
Most common photosynthetic pigment in plants and protists. |
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Light-Dependent reactions |
First stage of photosynthesis; converts light energy into chemical energy. |
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Light-Independent reactions |
Second stage of photosynthesis; use ATP and NADPH to assemble sugars from water and CO2 |
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Stroma |
The cytoplasm-like fluid between the thylakoid membranes of a chloroplast. |
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Thylakoid Membrane |
A chloroplasts highly flooded inner membrane system; forms a continuous compartment in the stroma. |
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ETP |
Electron Transfer Phosphorylation- electron flow through chains to set up a hydrogen ion gradient that drives ATP formation. |
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Photolysis |
Process which light energy breaks down a molecule |
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Photosystem |
Cluster of pigments and proteins that convert light energy into chemical energy into photosynthesis. |
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C3 Plant |
Uses only Calvin-Cycle to fix carbon |
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C4 Plant |
Type of plant that minimizes phosphorylation by fixing carbon twice, in two cell types |
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Calvin-Benson Cycle |
Cyclic carbon-fixing pathway that builds sugars from CO2; the light-independent reactions of photosynthesis |
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CAM Plant |
Type of plant that conseves water by fixing carbon twice, at different times of the day |
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Carbon Fixation |
Process by which carbon from an inorganic source such as CO2 gets incorporated into an inorganic molecule |
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Photorespiration |
Reaction in which rubisco attaches oxygen instead of CO2 to ribulose bisphosphate |
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Rubisco |
Ribulose bisphosphate carboxylase. Carbon-fixing enzyme of the calvin cycle |
