Top 550+ Solved Physiology MCQ Questions Answer
Q. Uric acid is formed by the breakdown of:
a. purines
b. pyrimidines
c. glutamine
d. urea
e. all of the above
Q. Regarding cellular metabolism of cholesterol:
a. it inhibits HMG-CoA red???
b. is processed in part to other cholesterol esters by the enzyme acetyl CoA ??? acyltransferase
c. it inhibits the formation of CO2 receptors
d. all of the above
e. none of the above
Q. Which of the following substances decreases the activity of hormone-sensitive lipase?
a. adrenaline
b. thyroxine
c. serotonin
d. TSH
e. prostaglandin E
Q. Chromium deficiency leads to:
a. insulin resistance
b. hypogondal dwarfism
c. anaemia
d. changes in ossification
e. thyroid disorder
Q. Vitamin B1 (thiamine) deficiency leads to:
a. anaemia
b. beri beir
c. convulsions
d. dermatitis
e. pellagra
Q. Which of the following phosphate compounds is MOST important in the production ofenergy?
a. AMP (adenosine monophosphate)
b. ADP (adenosine diphosphate)
c. ATP (adenosine triphosphate)
d. GTP (guanosine triphosphate)
e. CTP (cytidine triphosphate)
Q. Which of the following is NOT produced by the citric acid cycle?
a. CO2
b. H+ ions
c. NAD+
d. GTP (guanosine triphosphate)
e. NADH
Q. The renal threshold for glucose, the arterial blood level at which glycosuria appears,is approximately:
a. 1.8g/dL
b. 180mg/dL
c. 18mg/dL
d. 80mg/dL
e. 800mg/dL
Q. Which of the following amino acids are glucogenic (ie give rise to compounds readilyconverted to glucose)?
a. alanine
b. leucine
c. isoleucine
d. phenylalanine
e. tyrosine
Q. Which of the following lipoproteins is SMALLEST in size?
a. chylomicrons
b. very low density lipoproteins
c. intermediate density lipoproteins
d. low density lipoproteins
e. high density lipoproteins
Q. Regarding the respiratory quotient, which of the following is TRUE?
a. it is the ratio of CO2 and O2 in the body at any one time
b. can go as high as 2.00 because lactic acid produces more oxygen
c. in acidosis, it goes down
d. in alkalosis it goes up
e. it is possible for it to be negative
Q. Regarding body surface area, which of the following statements is TRUE?
a. is calculated using weight/height
b. is calculated using 0.007184 X weight + 0.425 X weight + 0.725
c. it does not affect the basal metabolic rate
d. it does not affect the general metabolic rate
e. it has an effect on the specific dynamic action of foodstuffs
Q. Regarding the basal metabolic rate, which of the following is TRUE?
a. it is measured in the absence of disease, at room temperature, within 12 hours of a meal with a Benedict apparatus and the subject asleep
b. it increases 24% per degree Celsius of body temperature above 37°
c. it is decreased during the latter stage of starvation, explaining the initial rapid weight loss than a slowing down of weight loss
d. it declines in pregnancy
e. it correlates closer to weight than to body surface area
Q. Biological energy can be derived from all EXCEPT:
a. lactic acid
b. phosphorylcreatine
c. guanosine triphosphate
d. co enzyme A
e. urea