Question

A cell whose cytoplasm has a concentration of 0.02 mo lar glucose is placed in a test tube of water containing 0.02 molar glucose. Assuming that glucose is not actively transported into the cell 26) . which of the following terms describes the tonicity of the external solution relative to the cytoplasm of the cell? A) hypertonic B) turgid C) isotonic D) flaccid E) hypotonic

Answer 1

Answer:

The correct answer is  C) isotonic

Explanation:

In an isotonic condition, the osmotic pressure between two solutions which is separated by a semipermeable membrane remains the same. So as osmotic pressure remain the same in isotonic solution the net movement of any solute inside the cell is zero.

So here the concentration of glucose in the cytoplasm is 0.02 molar and in the tube of water which contains the cell is also 0.02. So the concentration is equal and glucose is not flowing actively therefore it will considered as an isotonic solution. So the correct answer is C.