Biochemistry | Page - 3 | Multiple Choice Questions (MCQ)

Q a430d29015 -
Respiratory acidosis can occur in all of thefollowing except?
A. Pulmonary oedema
B. Hysterical hyperventilation
C. Pneumothorax
D. Emphysema
Answer - B
Detail - No Details

Q e925cf14bd -
Respiratory acidosis results from?
A. Retention of carbon dioxide
B. Excessive elimination of carbon dioxide
C. Retention of bicarbonate
D. Excessive elimination of bicarbonate
Answer - A
Detail - No Details

Q 710a52ab4d -
Buffering action of haemoglobin is mainlydue to its?
A. Glutamine residues
B. Arginine residues
C. Histidine residues
D. Lysine residues
Answer - C
Detail - No Details

Q 9eef685732 -
Quantitatively, the most significant buffersystem in plasma is?
A. Phosphate buffer system
B. Carbonic acid-bicarbonate buffer system
C. Lactic acid-lactate buffer system
D. Protein buffer system
Answer - B
Detail - No Details

Q 43ca4b0f0c -
In a solution having a pH of 7.4, thehydrogen ion concentration is?
A. 7.4 nmol/L
B. 40 nmol/L
C. 56 nmol/L
D. 80 nmol/L
Answer - B
Detail - No Details

Q 4556b0bedc -
A diuretic which is an aldosterone antagonistis?
A. Spironolactone
B. Ethacrynic acid
C. Acetazolamide
D. Chlorothiazide
Answer - A
Detail - No Details

Q fb46b90c96 -
Furosemide inhibits reabsorption ofsodium and chloride in?
A. Proximal convoluted tubules
B. Loop of Henle
C. Distal convoluted tubules
D. Collecting ducts
Answer - B
Detail - No Details

Q 3ac083881e -
Thiazide diuretics inhibit?
A. Carbonic anhydrase
B. Aldosterone secretion
C. ADH secretion
D. Sodium reabsorption in distal tubules
Answer - D
Detail - No Details

Q 0ed57fb46e -
Diabetes insipidus results from?
A. Decreased insulin secretion
B. Decreased ADH secretion
C. Decreased aldosterone secretion
D. Unresponsiveness of osmoreceptors
Answer - B
Detail - No Details

Q af71c67345 -
Urinary water loss is increased in?
A. Diabetes mellitus
B. Diabetes insipidus
C. Chronic glomerulonephritis
D. All of these
Answer - D
Detail - No Details

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