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BIo chp 6
Metabolism
| Question | Answer |
|---|---|
| Define Energy | Ability to do work or bring about a change. |
| Define kinetic energy | Energy of motion |
| Define potential energy | stored energy |
| First Law of Thermodynamics | Energy cannot be created or destroyed, but it can be changed from one form to another. |
| Second Law of Thermodynamics | Energy cannot be changed from one form to another without a loss of usable energy. |
| Define Exergonic reactions | energy is released |
| Define Endergonic reactions | Requires an input of energy to occur |
| Define ATP and describe its function. | A.High energy compound used to drive metabolic reactions. B. Function of ATP-Primarily to perform cellular work |
| List the two components from which ATP is generated. | Constantly being generated from adenosine diphosphate and inorganic phosphate |
| Define enzyme | protein molecules that function as organic catalysts to speed a chemical reaction |
| Define metabolic pathway | Reactions are usually part of series of linked reactions |
| define energy of activation | the energy that must be added to cause molecules to react with one another; causes reactants to become products |
| describe how enzymes affect the energy of activation | lower energy of activation by bringing the substrates into contact with one another. |
| Define denatured | loses its normal shape so that it no longer functions |
| describe the condition which would cause a protein to denature | by improper pH and temp |
| define oxidation | Loss of electrons |
| define reduction | gain of electrons |
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