A. Methyl B12
B. Hydroxy B12
C. Cyano cobalamine
D. None of the above
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Related Mcqs:
- Vitamin B12 acts as a coenzyme to which one of the following enzyme ?
- A. Isocitrate dehydrogenase B. Homocyteine methyl transferase C. Glycogen synthase D. G-6-P dehydrogenase...
- Vitamin B12 is_______________?
- A. Extrinsic factor of castle B. Intrinsic factor of castle C. Cyano cobalamine D. A fat soluble vitamin...
- Mineral present in Vit B12 is_____________?
- A. Selenium B. Cobalt C. Iron D. Calcium...
- Vit B12 is absorbed in the_____________?
- A. Stomach B. Terminal ileum C. Lower jejunum D. Proximal ileum...
- In humans and other primates as well as in guinea pigs, this vitamin cannot be synthesized because of the absence of the enzyme L-gulonolactone oxidase: the vitamin is_____________?
- A. Pantothenic acid B. Nicotinic acid C. Ascorbic acid D. Folic acid...
- The intrinsic factor for vitamins B12 absorption is produced in the______________?
- A. Liver B. Stomach C. Pancreas D. Duodenum...
- Intrinsic factor for absorption of Vit B12 secreted in ______________?
- A. Duodenum B. Stomach C. Intestine D. Ileum...
- Vitamin C is present in largest amount in the body in____________?
- A. Eye B. Kidneys C. Testes D. Adrenal cortex...
- Partial or complete obstruction of some part of the C.V.S by a foreign body transported by the blood stream is termed as_____________?
- A. Thrombosis B. Coagulation C. Ischaemia D. Embolism...
- Biological activity of tocopherols has been attributed, in part to their actions as_____________?
- A. Antioxidant B. Anticoagulants C. Provitamin D. Antidotes for selenium poisoning...
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