Vitamins and Coenzymes problems
- 1. Lipoic acid exists in
Options- A. oxidized form
- B. reduced form
- C. oxidized and reduced form both
- D. none of these Discuss
Correct Answer: oxidized and reduced form both
- 2. The reductant, NADH, transfers the electrons via a flavo-proteins to the specific disulfide (S-S) protein to form a dithiol (SH,SH) protein which converts vitamin
Options- A. B12(Co2+)to B12(Co)
- B. B12(Co) to B12(Co2+)
- C. B12(Co2+)to B12(Co+)
- D. B12(Co+)to B12(Co2+) Discuss
Correct Answer: B12(Co2+)to B12(Co+)
- 3. What metal ion is specifically bound by vitamin B12?
Options- A. Cobalt
- B. Copper
- C. Zinc
- D. Iron Discuss
Correct Answer: Cobalt
- 4. Vitamin-C is considered as a
Options- A. water soluble
- B. fat soluble
- C. fat and water soluble
- D. none of these Discuss
Correct Answer: water soluble
- 5. Main function of insulin hormone is to
Options- A. increase glycogen in liver
- B. decrease glycogen in liver
- C. increase blood sugar
- D. decrease blood sugar Discuss
Correct Answer: decrease blood sugar
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