7. Energy and Metabolism

The process of stabilizing the structure of an enzyme in its active form by the binding of a molecule outside the active site is an example of __________.

Which of the following statements about allosteric proteins is/are true?

Succinylcholine is structurally almost identical to acetylcholine. If succinylcholine is added to a mixture that contains acetylcholine and the enzyme that hydrolyzes acetylcholine (but not succinylcholine), the rate of acetylcholine hydrolysis is decreased. Subsequent addition of more acetylcholine restores the original rate of acetylcholine hydrolysis. Which of the following correctly explains this observation?

The binding of an allosteric inhibitor to an enzyme causes the rate of product formation by the enzyme to decrease. Which of the following best explains why this decrease occurs?

2. If acetylcholinesterase became mutated and nonfunctional, which of the following would most likely occur in the synaptic cleft?

Which of these statements about enzyme inhibitors is true?