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AIIMS 2005
Exam
AIIMS
Year
2005
Subject
Zoology
Chapter
Excretory Products and their Elimination

AIIMS 2005 · Zoology · Excretory Products and their Elimination

Which one of the following statements is correct with respect to...

Which one of the following statements is correct with respect to salt water balance inside the body of living organisms?

Options

  1. Awhen water is not available camels do not produce urine but store urea in tissues.
  2. BSalmon fish excretes lot of stored salt through gill membrane when in fresh water.
  3. CParamecium discharges concentrated salt solution by contractile vacuoles.
  4. DThe body fluids of fresh water animals are generally hypotonic to surrounding water.

Correct answer

A. when water is not available camels do not produce urine but store urea in tissues.

Step-by-step solution

Camel excrete a highly concentrated urine to conserve water. They do not sweat till body temperature rises about 55∘C−60∘C55^{\circ} \mathrm{C}-60^{\circ} \mathrm{C}. Camel can also tolerate desiccation upto 40%40 \% cellular content.
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