A. 1 unit of Vitamin A
B. 2 unit of Vitamin A
C. 3 unit of Vitamin A
D. 4 unit of Vitamin A
✅ The correct answer is option B. 2 unit of Vitamin A.
Biochemistry
Unsaturated fatty acids are converted to______________?
A. Prostaglandins
B. Cholesterol
C. Cell membrane lipid
D. Saturated fatty acid
✅ The correct answer is option A. Prostaglandins.
The class of amino acids that contains only non essential amino acids is_______________?
A. Acidic
B. Basic
C. Aromatic
D. Branched chain
✅ The correct answer is option A. Acidic.
Both Vitamin K and C are involved in______________?
A. The synthesis of clotting factors
B. Post translational modifications
C. Antioxidant mechanisms
D. The microsomal hydroxylation reactions
✅ The correct answer is option B. Post translational modifications.
A mutation that converts an amino acid codon to a stop codon is a_____________?
A. Nonsense mutation
B. Transversion
C. Silent mutation
D. Frame shift mutation
✅ The correct answer is option A. Nonsense mutation.
Detoxification of drugs is controlled by_____________?
A. Cytochrome
B. Cytochrome P450
C. Cytochrome C
D. Cytochrome A
✅ The correct answer is option B. Cytochrome P450.
Most importent compansatory mechanism in metabolic acidosis______________?
A. Hyperventilation
B. Increased NH3 excretion by kidneys
C. Increased urinary phosphates
D. Increased HCO3 Production
✅ The correct answer is option B. Increased NH3 excretion by kidneys.
Km of an enzyme is_____________?
A. Dissociation constant
B. The normal physiological substrate concentration
C. Substrate concentration at half maximal velocity
D. Numerically identical for all isozymes that catalyses a given reaction
✅ The correct answer is option C. Substrate concentration at half maximal velocity.
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
✅ The correct answer is option C. Ascorbic acid.
End product of purine metabolism is______________?
A. Creatinine
B. Uric acid
C. Xanthine
D. Phosphates
✅ The correct answer is option B. Uric acid.