Asked in NUMS 2019 (cancelled sitting) 2019

Which one of the following is hypertonic solution to cells present in it?

Correct answer: A. A

  • A. A
  • B. B
  • C. C
  • D. None of these

Explanation

Option A is the hypertonic solution, as it causes the cells to shrink due to the movement of water out of the cell towards the higher solute concentration. Option B is the isotonic solution, and option C is the hypotonic solution as it causes the cells to fill with water due to the movement of water towards the lower solute concentration.

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About Biological Importance of Water

Water supports life through its polarity, hydrogen bonding and ability to dissolve ionic and polar substances. Its high specific heat, heat of vaporization, cohesion, adhesion and incompressibility help regulate temperature, transport materials and maintain structure, while hydrolysis and osmosis depend directly on water.

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