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.Management Sciences
Category: Biochemistry
The activity of this plasma enzyme is responsible virtually for all plasma cholesterol esters in humans_______________?
A. Lecithin cholesterol acyl transferase (LCAT)
B. Pyrophospho mevalonate decarboxylase
C. HMG CoA reductase
D. Phospho mevalonate kinase
In TCA cycle substrate level phosphorylation occurs at____________?
A. Succinate dehydrogenase
B. Malonate reduction
C. Thiokinase
D. None of the above
Biological activity of tocopherols has been attributed, in part to their actions as_____________?
A. Antioxidant
B. Anticoagulants
C. Provitamin
D. Antidotes for selenium poisoning
Enzymes concerned with the citric acid cycle are found in______________?
A. Nucleus
B. Mitochondria
C. Ribosomes
D. Non-particulate cytoplasm
Which of the following is the poorest source of vitamin C ?
A. Milk
B. Cabbage
C. Guava
D. Radish
The reducing equivalent for fatty acid synthesis is derived form____________?
A. Glycolysis
B. Kreb’s cycle
C. Urea cycle
D. Pentose phosphate pathway
Thyroxine and catecholamines are derived from_____________?
A. Tyrosine
B. Tryptophan
C. Alanine
D. Leucine
Which of the following is correct of the pyruvate dehydrogenase enzyme complex ?
A. It is present in cytoplasm
B. Catalyzes the conversion of pyruvate to oxaloacetate
C. Requires TPP as cofactor
D. Catalyzes a reversible reaction
On complete hydrolysis of DNA we will get all the following except______________?
A. Deoxy pentose sugar
B. Phosphoric acid
C. Adenosine
D. Purine bases
Galactosemia commonly is due to deficiency of_____________?
A. Galactose 1 phosphatase uridyl transferase
B. Galactose 1 phosphatase
C. Glucose 1 phosphatase
D. Glucose 6 phosphatase
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