When water is lost, but electrolytes are retained,
A) the osmolarity of the ECF falls.
B) osmosis moves water from the ICF to the ECF.
C) both the ECF and the ICF become more dilute.
D) there is an increase in the volume of the ICF.
E) aldosterone is secreted.

Question

Quizplus · Accepted Answer

When water is lost but electrolytes are retained, the concentration of electrolytes in the ECF increases, creating a hypertonic environment. This causes osmosis to move water from the ICF to the ECF in an attempt to balance the concentration of solutes on both sides of the cell membrane.

When Water Is Lost, but Electrolytes Are Retained