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
Related Mcqs:
- 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 - Which vitamin is synthesized by intestinal bacteria ?
A. Vit B
B. Vit A
C. Vit D
D. Vit K - Specific disease caused by vitamin B1 deficiency_______________
A. Pellagra
B. Angular cheilitis
C. Megaloblastic anemia
D. Peripheral polyneuritis - Vitamin K antagonizes_____________?
A. Corticosteroids
B. Thrombin formation
C. Bishydroxy coumarin
D. Production of clotting factors by liver - The function of vitamin A is/are related to which of the following ?
A. Retinol
B. Retinal
C. Retinoic acid
D. All of the above - Vitamin A_____________?
A. Is water soluble
B. Deficiency causes impaired vision
C. Maintains normal plasma calcium levels
D. Is required for formation of clotting factors - Two Vitamin whose derivatives are involved in transformation of serine to glycine are_____________?
A. B6 ad B12
B. B12 and nicotinamie
C. Folic acid and B6
D. Folic acid and B12 - Which vitamin is related to a co-factor in glycine metabolism is______________?
A. Vit E
B. Folic acid
C. Thiamine
D. Cobalamine - The action of vitamin K in formation of clotting factor is through__________________?
A. Post transcription
B. Post translation
C. Golgi complex
D. Endoplasmic reticulum - 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
