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18 Cards in this Set
- Front
- Back
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Catabolic |
- Breaking stuff down - Release energy |
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Anabolic |
- Building things - Gain energy |
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Metabolism |
Building up and breaking down |
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Enzymes |
Proteins that help to start reactions |
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First Law Of Thermodynamics |
- Energy can be transferred and transformed but it cannot be created or destroyed - Energy is constant - Energy is the same before as it is after |
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Second Law Of Thermodynamics |
- Every energy transfer or transformation increases the energy of the universe - Spontaneous process |
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Catalyst |
Enzymes that speed up reaction |
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Substrate |
Anything an enzyme acts on |
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Active Site |
Where substrate binds to enzymes |
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Induced Fit |
- Substrate and enzyme - Do not fit perfectly together enzyme changes shape to get a better fit - Uses covenant bonds - Twist/turn bonds of substrates so it will break |
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Work really slowly |
What happens to enzymes when its too cold? |
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Denature (fall apart) |
What happens to enzymes when its too hot? |
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Cofactors |
Help substrate bond to enzyme |
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Enzyme Inhibitors |
Toxin, poison stop enzyme from working |
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Competitive Inhibitor |
Inhibitor bonds to active sit so substrate cant bind |
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Noncompetitive Inhibitor |
Inhibitor binds somewhere else (not active site) and changes shape of active site so substrate cant bind |
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Allosteric Regulation |
- Turning on enzyme (activating) - Turning off (inhibiting) - On purpose to save energy! |
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Cooperativity |
One substrate binds to an enzyme, this encourages more substrates to bind to more enzymes |
