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Intro to metabolism
second bio311c test
| Question | Answer |
|---|---|
| the sum total of all biochemical reactions that take place in an organism | metabolism |
| produce organic molecules, break down organic molecules, provide cellular energy | jobs of metabolic reactions |
| anabolic process, catabolic process | biochemical reactions |
| synthetic or constructive reactions | anabolic process |
| degradative reactions | catabolic process |
| speeding up a chemical process | catalysis |
| the capacity to do work | energy |
| kinetic energy, potential energy | types of energy |
| the movement of molecules or objects | kinetic energy |
| due to position, location, or arrangements | potential energy |
| the study of heat and its transformation to mechanical energy | thermodynamics |
| energy can be transferred or transformed, but it cannot be created or destroyed | first law of thermodynamics |
| energy transsfer or transformation leads to an increase of disorder or randomness in the universe | second law of thermodynamics |
| a measure of randomness | entropy |
| the heat cpntent of or the total potential energy | enthalpy |
| the portion of a system's energy that is available to perform work when the temperature is uniform thruout the system | free energy |
| ^G=^H-T^S | energy equation |
| absolute temperature in kelvin | T |
| ^G and ^H is negative | favorable reaction |
| ^G and ^H is posisitve | unfavorable reaction |
| net release of free energy -^G | exergonic |
| net absorption of free energy +^G | endergonic |
| melting ice at room temperature, ball rolling down a slope | examples of spontaneous reaction |
| photosynthesis,refrigerating water, climbing uphill | examples of nonspontaneous reaction |
| (-^H),(+^S),(-^G),(T) | spontaneous reactions |
| amount of energy consumed to break a chemical bond or the amount of energy released when such a bond is formed | chemical reaction |
| heat is related; loss of enthalpy -^H | exothermic |
| heat is absorbed; gain of enthalpy +^H | endothermic |
| the movement of particles from higher to lower concentration | diffusion |
| the movement of water particles from higher concetration to lower concentration | osmosis |
| the movement of particles high concentration to low concentration with no new energy. selective process of what enters cells | passive transport |
| the movement of particles from low concentration to high concentration. involves energy in the form of ATP. | active transport |
Created by:
Isatta
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