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25 Cards in this Set
- Front
- Back
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The function of enzymes is crucially dependent on |
Their 3-D shape |
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Three conditions that can alter their shape, binding ability, or make them non-functional |
-high temps -extremes in pH acidity -salt concentrationteach enzyme has a vet fits only substrates with the correct three-dimensional shape and chemical characteristics |
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Each enzyme has a _______that fits only substrates with the correct 3D shape and chemical characteristics |
Active site |
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An enzyme is a ______, a chemical that speeds up a chemical reactions without itself being altered in the course of the reaction |
Catalyst |
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Do enzymes focus on catalyzing many different types of reactions? |
No enzymes focus catalyzing on a specific type of reaction |
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The specific reactants that bind to a particular enzyme are called _______ of that enzyme |
Substrates |
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All chemical reactions within a living cell that capture, store, or use energy |
Metabolism |
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All living cells require two types of metabolism: |
Catabolism and Anabolism |
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The link chain of reactions that release chemical energy in breaking down complex biomolecules is |
Catabolism |
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The link chain of reactions requiring energy that create complex biomolecules is |
Anabolism |
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Typically enzymes are involved in catalyzing the steps in sequence of chemical reactions known as |
Metabolic pathways |
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Metabolic pathways are responsible for production of key biological molecules such as |
Amino acids and nucleotides |
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How do enzymes lower the activation energy in enzymatic reactions or metabolic pathways |
LOCATION |
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As substrates enter the active site, it changes shape to mold snugly around the bonded substrates this model is known as |
Induced fit model |
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What does it take for atoms or molecules to react with each other |
The reactant must bump into each other often enough, fast enough, and in the correct orientation |
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The minimum energy input that enables atoms and molecules to react is called |
Activation energy |
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The oxygen dependent catabolic reaction that your cells use to extract energy from food is an example of a redox reaction |
Cellular respiration |
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An example of an anabolic pathway would be |
Photosynthesis |
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Biomolecules that speed up chemical reactions are |
Enzymes |
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The majority of enzymes are |
Proteins |
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Energy is defined as |
The capacity of any object to do work |
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The 4 types of energy are |
Potential Kinetic Chemical Thermal |
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Metabolic pathways consist of a series of chemical reactions in which electrons are transferred from one molecule or atom to another |
Redox reaction |
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The loss of electrons from a molecule atom or ion is |
Oxidation |
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The gain of electrons by a molecule, atom, or ion |
Reduction |
