When the ECF becomes hypertonic, water
A)movement is unaffected
B)moves into the cells by active transport
C)moves into the cells by osmosis
D)moves out of the cells by active transport
E)moves out of the cells by osmosis

Question

Quizplus · Accepted Answer

When the extracellular fluid (ECF) becomes hypertonic, water moves out of the cells by osmosis. This is because there is a higher concentration of solutes (e.g. electrolytes) in the ECF compared to the intracellular fluid (ICF), causing water to move out of the cells and into the ECF to balance the concentration gradient. This can lead to cell dehydration and shrinkage.

When the ECF Becomes Hypertonic, Water