1. Urea is transported by

A. Plasma
B. RBC
C. WBC
D. All of the above
Answer :   Plasma
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2. Cortex and medulla region in frog kidney are

A. Less
B. More Distinct
C. Absent
D. None of the above
Answer :   Absent
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3. Ammonia is excretory material in

A. Cartilaginous fishes
B. Fresh water fishes
C. Whale
D. Camel
Answer :   Fresh water fishes
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4. NH3 change into urea in presence of

A. Arginase enzyme
B. Urinase enzyme
C. Xanthine xidase
D. None of the above
Answer :   Arginase enzyme
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5. In ureotelic animals, urea is formed by the

A. Arginine cycle
B. Cori's cycle
C. Ornithine cycle
D. EM pathway
Answer :   Ornithine cycle
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6. Which blood vessel contains the least amount of urea

A. Hepatic vein
B. Renal vein
C. Hepatic portal vein
D. Renal artery
Answer :   Renal vein
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7. Water reabsorption in the distal part of kidney tubules is regulated by

A. STH
B. TSH
C. ADH
D. MSH
Answer :   ADH
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8. Trimethylamine is the excretory product in

A. Marine teleosts
B. Fresh water fishes
C. Terrestrial Molluses
D. Amphibians
Answer :   Marine teleosts
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9. Which substance is used mainly in kidney function test

A. Creatinine
B. Na+
C. Inulin
D. Urea
Answer :   Inulin
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10. What is true about distal convoluted tubule

A. Na+ reaborption requires energy
B. K+ reabsorption does not require energy
C. Ammonia is excreted
D. Water reabsorption requires energy
Answer :   Na+ reaborption requires energy
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