Mcq Subject: Biochemistry
Which of the following is not a component of transpo system?
A. Receptor activation
B. Selective gate
C. Non-selective channel
D. Energy coupling system
View DescriptionRate limiting step in cholesterol synthesis is catalysed by which of the following enzyme?
A. HMG CoA synthetase
B. HMG CoA reductase
C. Thiokinase
D. Mevalonate kinase
View DescriptionWhich of the following vitamin reduces the risk of insulin resistance, obesity, and the metabolic syndrome?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin B12
View DescriptionIn Familial hypercholesterolemia there is deficiency of
A. LDL receptor
B. Apoprotein A
C. Apo protein C
D. Lipoprotein lipase
View DescriptionWhich of the following is the main enzyme responsible for activation of xenobiotics?
A. Cytochrome P-450
B. Glucuronyl transferase
C. Glutathione S-transferase
D. NADPH cytochrome P-450-reductase
View DescriptionAll of the following could include the mechanism or function of oxigenases, EXCEPT:
A. Incorporate 2 atoms of oxygen
B. Incorporate 1 atom of oxygen
C. Required for hydroxylation of steroids
D. Required for carboxylation of drugs
View DescriptionIn chronic alcoholism the rate limiting component for alcohol metabolism excluding enzymes is/are : (PGI Dec 2008)
A. NADP
B. NAD+
C. NADPH
D. FADH
View DescriptionWhich vitamin is supplied from only animal source:
A. Vitamin C
B. Vitamin B7
C. Vitamin B12
D. Vitamin D
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