Most of vitamin B12 in the body is stored as_____________?

Related Mcqs:

1. 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

2. Vitamin B12 is_______________?

   A. Extrinsic factor of castle
   B. Intrinsic factor of castle
   C. Cyano cobalamine
   D. A fat soluble vitamin

3. Mineral present in Vit B12 is_____________?

   A. Selenium
   B. Cobalt
   C. Iron
   D. Calcium

4. Vit B12 is absorbed in the_____________?

   A. Stomach
   B. Terminal ileum
   C. Lower jejunum
   D. Proximal ileum

5. 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

6. The intrinsic factor for vitamins B12 absorption is produced in the______________?

   A. Liver
   B. Stomach
   C. Pancreas
   D. Duodenum

7. Intrinsic factor for absorption of Vit B12 secreted in ______________?

   A. Duodenum
   B. Stomach
   C. Intestine
   D. Ileum

8. Vitamin C is present in largest amount in the body in____________?

   A. Eye
   B. Kidneys
   C. Testes
   D. Adrenal cortex

9. 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

10. Biological activity of tocopherols has been attributed, in part to their actions as_____________?

    A. Antioxidant
    B. Anticoagulants
    C. Provitamin
    D. Antidotes for selenium poisoning