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.Management Sciences
Category: Vitamins
Vit B12 is absorbed in the_____________?
A. Stomach
B. Terminal ileum
C. Lower jejunum
D. Proximal ileum
Iron is complexed in haemoglobin to_______________?
A. Leucine
B. Histidine
C. Isoleucine
D. Valine
1st clinical sign of vitamin A deficiency is_____________?
A. night blindness
B. bitot’s spots
C. xerostomia
D. conjunctival xeroses
The primary role of chaperones is to help in______________?
A. Protein synthesis
B. Protein degradation
C. Protein denaturation
D. Protein folding
Deficiency of vitamin C causes the following except_______________?
A. Defective collagen synthesis
B. Soft swollen gums
C. Pigeon chest
D. Subcutaneous & other hemorrhage
Vitamin D_____________?
A. Absorption requires bile pigments
B. Synthesis is regulated at the reaction catalyzed by 15-hydroxylase
C. Deficiency on adults leads to rickets
D. Along with PTH, increases calcium resorption from bone
Tocopherol is associated with____________?
A. Vitamin A
B. Vitamin E
C. Vitamin K
D. Vitamin D
In Hartnup’s disease _______ is excreted in the urine?
A. Ornithine
B. Glutamine
C. Tryptophan
D. Phenylalanine
Active form of vitamin D in kidney is_____________?
A. 1 dihydroxy cholecalciferol
B. 25 hydroxy cholecalciferol
C. 1,25 dihydroxy cholecalciferol
D. 7 dihydroxy calciferol
Quaternary structure of protein is_____________?
A. The arrangement sequence of amino acids in the polypeptide chain
B. Inter relation between amino acids in a single polypeptide chain
C. Inter relation of amino acids in 2 polypeptide chains
D. The inter relation and arrangement of polypeptides in a protein with more than 2 polypeptide chains
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