All of the following statements concerning vitamin A functions are true EXCEPT:

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Advanced Pharmacology Across the Lifespan Questions

Question 1 of 5

All of the following statements concerning vitamin A functions are true EXCEPT:

A. Transmission of light stimuli to the brain, via combination with a specific protein, opsin, to form a visual pigment, rhodopsin, in the retina of the eye B. Regulation of cell growth and differentiation in epithelium, connective tissues (including bone and cartilage) and hematopoietic tissues by retinoic acid, a highly bioactive metabolite of retinol C. Retinoic acid is especially important during embryogenesis D. Acts as a hormone involved in regulation of calcium and phosphorus homeostasis

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 2 of 5

Ingestion of polar bear liver may cause acute poisoning of:

A. Vitamin D B. Vitamin E C. Vitamin A D. Vitamin C

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

Which of the following antienzymes is a monoamine oxidase (MAO) inhibitor?

A. Physostigmine B. Selegiline C. Acetazolamide D. Disulfiram

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

Hyperlipoproteinemia is a condition marked by an abnormally high level of lipoproteins in the blood. This consideration is:

A. TRUE B. FALSE C. None D. All the above

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

All of the following statements concerning drugs which inhibit cholesterol synthesis are true, EXCEPT:

A. They work in part by increasing the rate of LDL clearance from the plasma B. They are the most effective single agents for lowering LDL-cholesterol C. When used with a bile-acid binding resin, they can lower LDL-cholesterol by 50% or more D. No special monitoring is required in patients receiving one of them

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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