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9 Cards in this Set
- Front
- Back
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Metabolism |
-Sum of all chemical reactions in body -Transfers energy, follows laws of thermodynamics |
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Laws of thermodynamics |
-1st: energy can’t be created/destroyed, only transformed -2nd: when reactions occurs, they become more disordered |
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The carbon cycle |
-Sun is source of most energy -Light energy: used by producers, synthesize sugar -Non photosynthesizing: energy from food -carbon dioxide and food in energy transfer |
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Carbon cycle |
Back (Definition) |
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Transfer of electrons |
-Energy transfer needs transfer of electrons -Redox reaction: transfers electrons -Oxidation:loss of electrons -Reduction: gain of electrons |
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Metabolism types |
-Anabolic: Biosynthetic, creates complex molecules out of smaller one -Catabolic: Breaks down complex molecules to get energy |
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Enzymes |
-Speed up reactions -Biological catalysts •Lower activation energy •Increase reaction speed |
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Enzyme structure |
-3D shape defines function -Active site: region where substrate binds •Induced fit: Active site mold around substrate |
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Enzyme functions |
-Depends on random collisions -Multiple enzymes can be close, maximizes molecular collisions |
