biorev2 - 1. Endergonic: require energy (photosynthesis);...

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1. Endergonic: require energy (photosynthesis); Exergonic: use energy (aerobic respiration). 2. speed up metabolic reactions by lowering energy barriers; substrate specific; physical and chemical environment affects enzyme activity; reusable; active site is an enzymes catalytic center. 3. physical and chemical environment: temperature, pH, salt concentration, allosteric regulators, coenzymes and cofactors 4. Active transport: requires energy (atp), moves from lower to higher concentration against gradient. Diffusion: doesn’t require energy, down gradient. Facilitated: hi to low requires a carrier protein. Osmosis: movement of water to dilute concentration (passive). 5. Phagocytosis: cell-eating; Pinocytosis: cell-drinking (both part of endocytosis: transport into cell) 6. Receptor mediated endocytosis: enables a cell to acquire materials that may be in low concentrations in the environment. 7.
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This note was uploaded on 03/20/2008 for the course BIO 106 taught by Professor Flick during the Spring '08 term at N.C. State.

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biorev2 - 1. Endergonic: require energy (photosynthesis);...

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