The Structure of One of the First ACE Inhibitors Is

question 74

Multiple Choice

The structure of one of the first ACE inhibitors is given below. What is the purpose of the sulfur in this molecule?

• A) It is highly reactive with angiotensin II.
• B) It binds to a metal on the exterior of ACE.
• C) It holds the molecule in the active site of ACE.
• D) It makes Captopril into a strong acid.
• E) It forms a covalent bond with ACE, permanently deactivating it.

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Definitions:

Reflex Arc

The neural pathway that controls a reflex action, including at least one sensory neuron and one motor neuron, creating an automatic response to a stimulus.

Receptor

A protein molecule that receives and responds to chemical signals from hormones, neurotransmitters, or other stimuli outside the cell.

Vestibulocochlear

Pertaining to the vestibulocochlear nerve, the eighth cranial nerve, which is responsible for transmitting sound and equilibrium (balance) information from the inner ear to the brain.

Accessory

Relating to additional or auxiliary components or structures, often used to describe nerves or muscles that supplement a primary function.