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What is a characteristic of enzymes that exhibit cooperativity?
What is a characteristic of enzymes that exhibit cooperativity?
- They have a sigmoidal curve for reaction velocity vs. substrate concentration (correct)
- They follow Michaelis-Menten kinetics
- They only bind to one substrate molecule at a time
- They have a hyperbolic curve for reaction velocity vs. substrate concentration
What is the term for the effect of a molecule that binds to an enzyme at a site other than the active site?
What is the term for the effect of a molecule that binds to an enzyme at a site other than the active site?
- Heterotropic effect
- Substrate effect
- Cooperative effect
- Allosteric effect (correct)
What is the purpose of feedback inhibition in a metabolic pathway?
What is the purpose of feedback inhibition in a metabolic pathway?
- To decrease the rate of the pathway
- To increase the rate of the pathway
- To inhibit the activity of an enzyme
- To regulate the flow of substrate molecules through the pathway (correct)
What is the term for an effector molecule that is different from the substrate?
What is the term for an effector molecule that is different from the substrate?
What is the effect of an increase in the concentration of G on the enzyme that converts D to E?
What is the effect of an increase in the concentration of G on the enzyme that converts D to E?
What is the result of the binding of citrate to phosphofructokinase-1?
What is the result of the binding of citrate to phosphofructokinase-1?
What is the shape of the curve for reaction velocity vs. substrate concentration for enzymes that follow Michaelis-Menten kinetics?
What is the shape of the curve for reaction velocity vs. substrate concentration for enzymes that follow Michaelis-Menten kinetics?
What is the term for the binding of substrate molecules to multiple sites on an enzyme, resulting in increased catalytic activity?
What is the term for the binding of substrate molecules to multiple sites on an enzyme, resulting in increased catalytic activity?
What is the purpose of the allosteric site on the enzyme that converts D to E?
What is the purpose of the allosteric site on the enzyme that converts D to E?
What is the result of the inhibition of the enzyme that converts D to E?
What is the result of the inhibition of the enzyme that converts D to E?
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