The function of vitamin A is/are related to which of the following ?

Related Mcqs:

1. 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

2. Which vitamin is related to a co-factor in glycine metabolism is______________?

   A. Vit E
   B. Folic acid
   C. Thiamine
   D. Cobalamine

3. The function of vitamin K is______________?

   A. Thrombin formation
   B. Prothrombin formation
   C. Fibrin formation
   D. Thromboplastin formation

4. Deficiency of vitamin A causes the following except_____________?

   A. Night blindness
   B. Corneal dryness
   C. Bitot’s spots
   D. Myopia

5. In vitamin A deficiency, patient complains of all of the following except___________?

   A. Night blindness
   B. Xerophthalmia
   C. Keratosis
   D. Phophoric calciuria

6. Deficiency of vitamin C causes the following except____________?

   A. Painful swollen gums
   B. Abnormal Collagen
   C. Anaemia
   D. Diarrhoea

7. 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

8. The following vitamin is important in non-oxidative decarboxylation, transamination and transsulfuration reactions_____________?

   A. Riboflavin
   B. Thiamine
   C. Pyridoxine
   D. Pantothenic acid

9. Deficiency of vitamin C causes the following except_______________?

   A. Defective collagen synthesis
   B. Soft swollen gums
   C. Pigeon chest
   D. Subcutaneous & other hemorrhage

10. All of the following are true about manifestations of vitamin E deficiency except_____________?

    A. Hemolytic anemia
    B. Posterior column abnormalities
    C. Cerebellar ataxia
    D. Autonomic dysfunctions