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, 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:

Isotonic

Explanation:

If the solute concentration of the cell and that of its surrounding medium are the same there will be no net flow of water in either directions. In this case, the external solution is said to be isotonic to the cell.

Both the cytoplasm concentration and the glucose in the test tube are the same.