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Pharmacology and Biochemistry Quiz

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Questions and Answers

What is the role of selenium-dependent enzymes in the thyroid hormone conversion process?

It converts T4 to T3 (correct)

It converts T3 to T4

It regulates the production of TSH

It increases the potency of T4

Which mineral is known to play a physiological role in bone development?

Silicon

Nickel

Fluoride (correct)

Boron

What is the effect of chromium and vanadium on diabetes?

Increase blood glucose level

Reduce blood glucose level (correct)

Reduce insulin resistance

Increase glucagon production

Which element is a part of vitamin B12?

Cobalt Signup and view all the answers

What is the effect of topical fluoride treatment on dental plaque formation?

Reduces acid production Signup and view all the answers

What is the role of an arsenic-containing compound in the treatment of leukemia?

It is used to treat acute promyelocytic leukemia Signup and view all the answers

What is a key component of cell membranes that contains phosphorus?

Phospholipid Signup and view all the answers

Which vitamin is associated with the chemical mentioned above?

Vitamin D Signup and view all the answers

What is essential for nutrients and some of the elements of the periodic table?

Minerals Signup and view all the answers

How is iron absorption regulated in response to circular iron status or diseases?

Hepcidin binds to ferroportin to reduce iron release from enterocytes Signup and view all the answers

Where does regulation of hepcidin gene expression mainly occur?

Liver cells Signup and view all the answers

What happens when iron status in the blood is high?

Hepcidin gene expression is enhanced Signup and view all the answers

What is the role of ascorbate in the reactions catalyzed by prolyl hydroxylase and lysyl hydroxylase?

A reductant, providing reducing equivalent to convert Fe3+ to Fe2+ Signup and view all the answers

What is the consequence of vitamin B12 deficiency?

Abnormal myelin formation Signup and view all the answers

What is required for the synthesis of NAD+ and NADP+?

Tryptophan and riboflavin Signup and view all the answers

What is the consequence of high doses of vitamin C above the tolerable upper intake level (UL)?

Promote oxidative stress Signup and view all the answers

What is necessary for the stabilization and absorption of vitamin B12 in the GI tract?

At least 3 proteins Signup and view all the answers

What is required for the hydroxylation of collagen?

Proline and lysine Signup and view all the answers