Page 1 of 2: MCQ "7"

wasem · Credits: 8632 My Scrapbook

Question 21. Iron:

(a) Its absorption is favoured in the ferrous state (Fe2+).
True False

(b) Is stored in the body as transferrin.
True False

(c) Deficiency results in a macrocytic anaemia.
True False

(d) Overload can result in diabetes mellitus.
True False

(e) Overload can be treated with desferrioxamine.
True False

Question 22. Vitamin A:

(a) Is a fat-soluble vitamin.
True False

(b) Can increase epithelial cell turnover.
True False

(c) Deficiency results in impaired dark adaptation and night blindness.
True False

(d) Can be used in the treatment of severe acne.
True False

(e) Is safe to use in pregnancy, even in excess.
True False

Question 23. Biotin:

(a) Is synthesized by bacteria in the gut.
True False

(b) Is the co-enzyme for the aminotransferases.
True False

(c) Deficiency can be induced by eating lots of raw egg whites.
True False

(d) Deficiency results in night blindness.
True False

(e) Deficiency may result in defective fatty acid synthesis.
True False

Question 24. Vitamin D:

(a) Can be synthesized by the body in sufficient amounts to satisfy the daily requirement.
True False

(b) Active form is 25-hydroxycholecalciferol.
True False

(c) Principal role is in calcium homeostasis.
True False

(d) Is a recognized teratogen.
True False

(e) Is an anti-oxidant.
True False

Question 25. Calcium:

(a) Is the most abundant mineral in the human body.
True False

(b) Deficiency can occur secondary to vitamin D deficiency.
True False

(c) Deficiency in children causes rickets.
True False

(d) Deficiency in adults results in osteomalacia, characterized by a reduction in the total bone mass.
True False

(e) In overload, is deposited in the eyes producing yellow-brown, Kayser-Fleischer rings on the cornea.
True False

jgsharon · Credits: 9735 My Scrapbook

Q 21.

A. True

B. False

C. False

D. True

E. True

jgsharon · Credits: 9735 My Scrapbook

Q 22. Vitamin A

A to D True

E. False

jgsharon · Credits: 9735 My Scrapbook

Q 23. Biotin

A.??

B.False

C. True

D. False

E. True

jgsharon · Credits: 9735 My Scrapbook

Wasem, One question per post please!!!!!!!!

jgsharon · Credits: 9735 My Scrapbook

Q 24. Vitamin D

A. True

B. False

C. True

D. True

E. False

jgsharon · Credits: 9735 My Scrapbook

Q 25. Calcium

All true except E.

wasem · Credits: 8632 My Scrapbook

thnx

wasem · Credits: 8632 My Scrapbook

we need more answers
i will post the correct answer in 30/3/2006

wasem · Credits: 8632 My Scrapbook

Question 21. Iron:

(a) Its absorption is favoured in the ferrous state (Fe2+).
True False

(b) Is stored in the body as transferrin.
True False

(c) Deficiency results in a macrocytic anaemia.
True False

(d) Overload can result in diabetes mellitus.
True False

(e) Overload can be treated with desferrioxamine.
True False

Iron:

(a) Its absorption is favoured in the ferrous state (Fe2+). (True)
(b) Is stored in the body as transferrin. (False)
(c) Deficiency results in a macrocytic anaemia. (False)
(d) Overload can result in diabetes mellitus. (True)
(e) Overload can be treated with desferrioxamine. (True)

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