Question

part a
red blood cells placed in 5% sodium chloride solution will ________.
lose water and undergo crenation
lose water and undergo hemolysis
gain water and undergo crenation
gain water and undergo hemolysis

Explanation:

A 5% sodium chloride solution is hypertonic to red blood cells (normal saline ~0.9%). In hypertonic solutions, water exits cells via osmosis. Red blood cells losing water shrink and undergo crenation. Hemolysis (bursting) occurs in hypotonic solutions with water gain.

Answer:

A. lose water and undergo crenation