Multiple Choice Questions

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Which is regarded as the urinary bladder of the embryo?

  • Amnion

  • Allantois

  • Chorion

  • Yolk sac


B.

Allantois

Allantois is an extraembryonic membrane developed as an outgrowth from hindgut. In the eggs of reptiles and birds, it functions as a urinary bladder and stores the waste excretory products. It also provides oxygen (in reptiles, birds and mammals) and food (in mammals) to the embryo.


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Which leaves the liver and moves towards kidney

  • Ammonia

  • Urea

  • Glycogen

  • Bile


A condition of failure of kidney to form urine is called

  • Deamination

  • Entropy

  • Anuria

  • None of these


Major nitrogenous waste product in ureotelic animals like rabbit and other mammals is

  • uric acid

  •  urea

  •  ammonia

  • amino acids


The canal system is a characteristic feature of

  • Echinoderms

  • Helminths

  • Coelenterates

  • Sponges


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Solenocytes are the main excretory structures in

  • Annelids

  • Molluscs

  • Echinodermates

  • Platyhelminthes


Pyloric sphincter guards the opening between

  • Stomach and Duodenum

  • Cardia and Fundus

  • Oesophagus and Stomach

  • Fundus and Pylorus


Uric acid is the excretory waste of

  • Adult amphibians

  • Birds

  • Amphibians Larvae

  • Mammals


The net pressure gradient that causes the fluid to filter out of the glomeruli into the capsule is

  • 20 mm Hg

  • 75 mm Hg

  • 30 mm Hg

  • 50 mm Hg


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Urine is concentrated in

  • kidney

  • deamination

  • arginine

  •  Omithine


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