Top 550+ Solved Physiology MCQ Questions Answer
Q. Regarding the respiratory quotient:
a. it is the ratio of CO2 to O2 at any time
b. RQ of fat is 0.8
c. increases with hyperventilation
d. increases in metabolic alkalosis
Q. Regarding basal metabolic rate:
a. it is higher in women
b. it is determined at rest within 12 hours after the last meal
c. increases by 18% for each 1°C of fever
d. is about 40Kcal/m2/h in an average man
Q. Regarding carbohydrate metabolism:
a. glucokinase is increased in starvation
b. the breakdown of glycogen is called glycolysis
c. the direct oxidative pathway involves the breakdown of glucose through triose
d. the conversion of pyruvate to acetyl-CoA is irreversible
Q. Regarding electrolyte absorption:
a. cholera toxin binds to adenosine diphosphate ribose to the subunit of Gs, stimulative ATPase activity
b. active transport of Na+ into the small intestine enterocytes is coupled with the absorption of glucose
c. magnesium sulphate absorption is coupled with Na+ -K+ -ATPase pump
d. the Na+ -K+ ATPase pumps are located at the luminal membrane of the enterocyte
Q. Vitamins co-transported with Na+ include all EXCEPT:
a. thiamine
b. folate
c. niacin
d. riboflavin
e. pyridoxine
Q. Fat soluble vitamins include all EXCEPT:
a. vitamin A
b. vitamin C
c. vitamin D
d. vitamin E
e. vitamin K
Q. The largest daily volume of secretions in the GIT originates in the:
a. salivary glands
b. stomach
c. gallbladder (bile)
d. pancreas
e. intestine
Q. Iron:
a. most dietary iron is in the ferrous state
b. most iron is absorbed in the upper small intestine
c. a ferritin micelle contains 1,000 atoms of iron
d. 90% of body iron is in haemoglobin
e. 10% of dietary iron is normally absorbed
Q. Ketone bodies:
a. are not formed under normal conditions
b. are all moderately strong acids
c. are formed when intracellular glucose is deficient
d. are easily metabolised in the liver
e. all of the above
Q. Creatinuria can occur in all EXCEPT:
a. healthy children
b. pregnant women
c. starvation
d. hypothyroidism
e. poorly controlled diabetes mellitus
Q. Human hepatic bile (hepatic bile duct) is largely:
a. water
b. bile salts
c. bile pigment
d. cholesterol
e. lecithin
Q. The nutritionally essential amino acids include:
a. alanine
b. cysteine
c. tyrosine
d. methionine
e. glutamine