Biochemistry and clinical pathology mcqs (61-70)

 

61.which is not an essential amino acid

A. Threonine

B. Tryptophan 

C. Valine

D. Glutamine

Ans. D

62.Insulin is usually classified as a/an

A. Peptide hormone

B. Amino acid

C. Phospholipid

D. Enzyme

Ans. A

63.An enzyme is a substance which 

A. Hydrolyzes

B. Dehydrates 

C. Acts as a catalyst

D. Converts heat to energy

Ans. C

64.A substance found commonly in fermented foods which can be toxic when MAO inhibitors are used is 

A. ADP

B. STP

C. Tyramine

D. Histidine

Ans. C

65.which of the following is needed in determining the isoelectric point of an amino acid? 

A. Structural formula 

B. Dissociation constant 

C. Electrophoretic pattern 

D. Composition 

Ans. B

66.The conversion of an amino acid to sugar is

A. Hydrolysis 

B. Cocarboxylation

C. Glycolysis

D. Gkuconeogenesis

Ans. D

67.MAO is classified as a

A. Protein inhibitor 

B. Complexing agent

C. Enzyme 

D. Hormone 

Ans. C

68.Which substance yields the largest number of calories per gram? 

A. Carbohydrates 

B. Proteins 

C. Minerals

D. Fats

Ans. D

69.Chloride plays an important role in

A. Osmotic regulation

B. Water balance

C. Production of HCL in gastric juice

D. All the above

Ans. D

70.The principal site of glucose production in the human body is

A. Blood 

B. Pituitary gland 

C. Muscle tissue 

D. Liver

Ans. D