21.
Diuresis is the condition in which
A
The excretion of volume of urine increases
B
The excretion of volume of urine decreases
C
The kidney fails to excrete urine
D
The water balance of the body is disturbed.
Answer :
The excretion of volume of urine increases
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22.
A fall in glomerular filtration rate (GFR) activates
A
adrenal cortex to release aldosterone
B
adrenal medulla to release adrenaline
C
juxta - glomerular cells to release renin
D
posterior pituitary to release vasopressin
Answer :
juxta - glomerular cells to release renin
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23.
Absorption Na+ and K+ ions does not occur in
A
Bowman's capsule
B
Loop of henle
C
Distal convoluted tubule
D
Proximal convoluted tubule
Answer :
Bowman's capsule
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24.
Presence of which of the following conditions in urine are indicative of Diabetes Mellitus?
A
Uremia and Renal Calculi
B
Ketonuria and Glycosuria
C
Renal calculi and Hyperglycaemia
D
Uremia and Ketonuria
Answer :
Ketonuria and Glycosuria
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25.
Diameter of the renal afferent vessel is
A
Same as that of efferent
B
Smaller than that of efferent
C
Larger than that of efferent
D
There is no efferent vessel
Answer :
Larger than that of efferent
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26.
Sulphates phosphates and carbonates of calcium are excreted by
A
Kidney
B
Liver
C
Spleen
D
Colon
Answer :
Colon
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27.
Which of the following does not favour the formation of large quantities of dilute urine?
A
Caffeine
B
Renin
C
Atrial-natriuretic factor
D
Alcohol
Answer :
Renin
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28.
Formation of concentrated (hyperosmotic) urine in vertebrates generally depends on
A
length of the proximal convoluted tubule
B
length of Henle's loop
C
area of Bowman's capsule epithelium
D
capillary network forming glomerulus
Answer :
length of Henle's loop
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29.
Ornithine cycle performs
A
ATP synthesis
B
Urea formation in spleen
C
Urea formation in liver
D
Urine formation in liver
Answer :
Urea formation in liver
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30.
(A) The conversion of a protein waste, the ammonia into urea, occurs in (B) Urea is synthesized in
A
Kidneys
B
Lungs
C
Intestine
D
Liver
Answer :
Liver
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