Discussion
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- Question
A deficiency of niacin causes
Options- A. pellagra
- B. scurvy
- C. cataract
- D. anemia
- Correct Answer
- pellagra
- 1. A deficiency of Vitamin K results in a decreased level of
Options- A. prothrombin
- B. thrombin
- C. fibrin
- D. fibrinogen Discuss
- 2. An enzyme, L-folate reductase reduces folic acid to
Options- A. hydrofolic acid
- B. dihydrofolic acid
- C. trihydrofolic acid
- D. tetrahydrofolic acid Discuss
- 3. Lipoic acid is a co-factor of the
Options- A. pyruvic dehydrogenase
- B. ?-ketoglutaric dehydrogenase
- C. both (a) and (b)
- D. di-hydroorotate dehydrogenase Discuss
- 4. Which of these is a vitamin A precursor?
Options- A. Cobalamin
- B. Pyridoxine
- C. Beta-Carotene
- D. Thiamine Discuss
- 5. Which of these is a symptom of vitamin A deficiency?
Options- A. Osteoporosis
- B. Impaired taste perception
- C. Blindness
- D. Impaired blood clotting Discuss
- 6. Who discovered vitamin C (ascorbic acid)?
Options- A. Paul Berg
- B. Linus Pauling
- C. Albert Szent-Gyorgyi
- D. Kerry Mull is Discuss
- 7. An example of a digestive hormone is
Options- A. lipase
- B. pepsin
- C. amylase
- D. gastrin Discuss
- 8. Which of these molecules is vitamin H?
Options- A. Biotin
- B. Carnitine
- C. Folic acid
- D. None of these Discuss
- 9. The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become
Options- A. colorless on reduction with Zn in acid and regained its color on re-oxidation
- B. colorless on oxidation and regained its color on reduction with Zn in acid
- C. more deep in color on reduction with Zn in acid and regained its color on re-oxidation
- D. more deep in color on oxidation and regained its color on reduction with Zn in acid Discuss
- 10. Ascorbic acid acts as an
Options- A. reducing agent
- B. oxidizing agent
- C. oxidizing and reducing agent both
- D. none of the above Discuss
Vitamins and Coenzymes problems
Search Results
Correct Answer: prothrombin
Correct Answer: dihydrofolic acid
Correct Answer: both (a) and (b)
Correct Answer: Beta-Carotene
Correct Answer: Blindness
Correct Answer: Albert Szent-Gyorgyi
Correct Answer: gastrin
Correct Answer: Biotin
Correct Answer: colorless on reduction with Zn in acid and regained its color on re-oxidation
Correct Answer: reducing agent
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