When large amounts of pure water are consumed
A) the volume of the ICF will decrease.
B) the volume of the ECF will decrease.
C) the ECF becomes hypertonic to the ICF.
D) osmolarities of the ICF and ECF will drop.
E) vasopressin will be released

Question

Quizplus · Accepted Answer

Large amounts of pure water consumption will dilute the solutes in both the ICF and ECF, thereby lowering their osmolarities. However, there will be no significant shift of water or solutes between the compartments, and thus the volume of the ICF and ECF will remain unchanged. Vasopressin, a hormone that promotes water conservation, will not be released in response to water intake, as the body's water balance is not disturbed. Therefore, choice D is the best option.

When Large Amounts of Pure Water Are Consumed