do(es) not require membrane receptors to invoke cell responses.

Correct Answer: C

Rationale: Steroids diffuse into cells and bind intracellular receptors.

Correct Answer: A

Rationale: ACTH stimulates cortisol production in the adrenal cortex.

Correct Answer: D

Rationale: LH triggers corpus luteum formation in females.

Correct Answer: C

Rationale: GH reduces glucose uptake by muscle, sparing it for other tissues.

Correct Answer: B

Rationale: The adrenal cortex (zonae) does not secrete epinephrine; that's from the medulla.