1. The final product of ornithine
cycle is
a)
citrulline
b) urea
c)ammonia
d)arginine
2.In which part of nephron,
reabsorption of glucose is maximum from filtrate?
a)Henle’s
loop
b)Distal
convoluted tubule
c)seminiferous
tubules
d)Proximal convoluted tubule
3. Functional kidney of mammals is
a)archinephros
type
b)metanephros type
c)pronephros
type
d)ophisthosnephros
type
4. The maximum amount of electrolytes
and water(70-80%) from the glomerular filtrate is reabsorbed in which part of
the nephron?
a)Ascending
limb of loop of Henle
b)
Distal convoluted tubule
c)
Descending limb of loop of Henle
d) Proximal convoluted tubule
5.The peritubular capillaries of the nephron
arise from the
a)afferent
arteriole
b) efferent arteriole
c)
renal artery
d)arcuate
artery
6.Which of the following is true for
excretion in humans?
a)
Glucose and aminoacids are reabsorbed in PCT by simple diffusion
b)DCT
is impermeable to water
c)on an average, 25-30 gm of urea is
excreted out per day
d)Maximum
reabsorption occurs in the loop of Henle
7. A fall in GFR (glomerular
filtration rate) activates
a)juxtaglomerular cells to release
renin
b)adrenal
cortex to release aldosterone
c)adrenal
medulla to release adrenaline
d)posterior
pituitairy to release vasopressin
8.Which one of the following
characteristics is common both in humans and adult frogs?
a)four
chambered heart
b)internal
fertilization
c)nucleated
RBCs
d)ureotelic mode of excretion
9. Loop of Henle is found in
a)lung
b)liver
c)neurn
d)nephron
10. Fresh water bony fishes maintain
water balance by
a) excreting a hypotonic urine
b)
drinking small amount of water
c)excreting
salt across their gills
d)excreting
wastes in the form of uric acid
Learn more:
- Practice Test on Excretory System
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Answers
1. b) urea
2. d)Proximal convoluted tubule
3. b)metanephros type
4. d) Proximal convoluted tubule
5. b) efferent arteriole
6. c)on an average, 25-30 gm of urea is excreted out per day
7. a)juxtaglomerular cells to release renin
8. d)ureotelic mode of excretion
9. d)nephron
10. a) excreting a hypotonic urine
Tags:
human physiology mcq
mcq on excreetory system
MCQ on Excretory System in animals
MCQ on Excretory System in humans
MCQ on Human physiology