Which of the following statements concerning biotin functions are true:

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Cardiovascular Drugs Nursing Pharmacology Questions

Question 1 of 5

Which of the following statements concerning biotin functions are true:

A. Active functional form is pyridoxal phosphate, which is an essential coenzyme for transamination and decarboxylation of amino acids in more than 50 different enzyme systems B. Essential constituent of coenzyme A, the important coenzyme for acyl transfer in the TCA cycle and de novo fatty acid synthesis C. An extremely important antioxidant, which protects cell membrane lipids from peroxidation by breaking the chain reaction of free radical formation to which polyunsaturated fatty acids are particularly vulnerable D. Coenzyme for several reactions involving CO2 fixation into various compounds e.g. acetyl CoA to malonyl CoA (acetyl CoA carboxylase) – initial step in de novo fatty acid synthesis; propionyl CoA to methylmalonyl CoA (propionyl CoA carboxylase), pyruvate to oxaloacetate (pyruvate carboxylase)

Correct Answer: D

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

Question 2 of 5

Estrogens can prevent accelerated bone loss during the immediate postmenopausal period and at least transiently increase bone in the postmenopausal subject. This consideration is:

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

Correct Answer: A

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

Question 3 of 5

Recommended fluoride daily allowance is:

A. 1.5-4 mg B. 600-900 g C. 25 g D. 350-400 mg

Correct Answer: A

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

Question 4 of 5

What does the term “antibiotics” mean:

A. Non-organic or synthetic substances that selectively kill or inhibit the growth of other microorganisms B. Substances produced by some microorganisms and their synthetic analogues that selectively kill or inhibit the growth of another microorganisms C. Substances produced by some microorganisms and their synthetic analogues that inhibit the growth of organism cells D. Synthetic analogues of natural substances that kill protozoa and helminthes

Correct Answer: B

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

Question 5 of 5

Tick the drug belonging to antibiotics having a polyene structure:

A. Nystatin B. Ketoconazole C. Griseofulvin D. All of the above

Correct Answer: A

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

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