Discussion
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- Question
The occurrence of metals such as iron or molybdenum in some flavoproteins can
Options- A. stabilize the semiquinone
- B. de-stabilize the semiquinone
- C. form chelation
- D. all of these
- Correct Answer
- stabilize the semiquinone
- 1. The disease Beriberi is due to a dietary deficiency in
Options- A. vitamin B1 (thiamine)
- B. vitamin B2 (riboflavin)
- C. vitamin B6 (pyridoxine)
- D. vitamin B12 Discuss
- 2. A fat-soluble vitamin that regulates blood clotting is
Options- A. vitamin A
- B. vitamin K
- C. vitamin C
- D. niacin Discuss
- 3. The absence of ascorbic acid in the human diet gives rise to
Options- A. rickets
- B. pernicious anemia
- C. cataract
- D. beri-beri Discuss
- 4. The vitamin riboflavin is part of the __________ molecule.
Options- A. ferredoxin
- B. FAD
- C. pyridoxal phosphat
- D. pyrophosphate Discuss
- 5. The most prominent role that tocopherol has in in-vitro systems is as a strong
Options- A. antioxidants
- B. reducing agent
- C. oxidizing agent
- D. all of these Discuss
- 6. Vitamin B12 is useful in the prevention and treatment of
Options- A. pernicious anemia
- B. scurvy
- C. cataract
- D. beri-beri Discuss
- 7. Which of the following compounds/(s) belong/(s) to the vitamin B6 group?
Options- A. Pyridoxal
- B. Pyridoxine
- C. Pyridoxamine
- D. All of these Discuss
- 8. A deficiency of thiamin produces the disease known as
Options- A. beri-beri
- B. scurvy
- C. cataract
- D. anemia Discuss
- 9. Which of the following are reduced coenzymes?
Options- A. NADH and FADH2
- B. NAD+ and FAD
- C. ATP and GTP
- D. Coenzyme A and ubiquinone Discuss
- 10. Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of
Options- A. four isoprene units
- B. six isoprene units
- C. nine isoprene units
- D. four isoprene units Discuss
Vitamins and Coenzymes problems
Search Results
Correct Answer: vitamin B1 (thiamine)
Correct Answer: vitamin K
Correct Answer: pernicious anemia
Correct Answer: FAD
Correct Answer: antioxidants
Correct Answer: pernicious anemia
Correct Answer: All of these
Correct Answer: beri-beri
Correct Answer: NADH and FADH2
Correct Answer: four isoprene units
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