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Biology Ch. 8 Bush
| Question | Answer |
|---|---|
| energy | the ability to do work; energy cannot be created nor destroyed |
| thermodynamics | the study of flow and transformation of energy throughout the universe |
| metabolism | all of the chemical reactions within an organism |
| photosynthesis | two-phase anabolic pathway in which the sun's energy is converted to chemical energy for use by the cell |
| cellular respiration | catabolic pathway through which organic molecules are broken down to release energy for use by the cell |
| adenosine triphosphate | energy carrying biological molecule which, when broken down, drives cellular activity |
| thylakoid | in chloroplasts, one of the stacked, flattened pigment containing membranes in which light dependent reactions occur |
| granum | one of the stacks of pigment-containing thylakoids in a plant's chloroplasts |
| stroma | fluid-filled space outside the grana in which light-dependent reactions take place. |
| pigment | light-absorbing colored molecule, such as chlorophyll and carotenoid, in the thylakoid membranes of chloroplasts. |
| NADP | the major electron carrier in photosynthesis |
| Calvin cycle | light-independent reactions during phase two of photosynthesis in which energy is stored in organic molecules as glucose |
| rubisco | an enzyme that converts carbon dioxide molecules into organic molecules during the final step of the Calvin cycle |
| anaerobic process | anabolic process which does not require oxygen |
| aerobic respiration | metabolic process in which pyruvate is broken down and electron-carrier molecules are used to produce ATP through electron transport |
| aerobic process | a metabolic process which requires oxygen |
| glycolysis | the process by which glucose is broken down in the photosynthesis process |
| Kreb's cycle | the series of reactions in which pyruvate is broken down into carbon dioxide inside the mitochondria of cells |
| fermentation | process in which NAD+ is regenerated allowing cells to maintain glycolysis in the absence of oxygen |