The presence of cholesterol in the plasma membranes of some animal cells ________.
A) enables the membranes to stay fluid when cell temperature drops
B) enables the cell to remove hydrogen atoms from saturated phospholipids
C) enables the cell to add hydrogen atoms to unsaturated phospholipids
D) makes the cell membrane less flexible, allowing it to sustain greater intracellular pressure
E) reduces mutations to genetic material inside the cell

Question

Quizplus · Accepted Answer

Cholesterol helps maintain membrane fluidity by preventing phospholipids from packing too closely together at low temperatures, which could cause the membrane to solidify.

The Presence of Cholesterol in the Plasma Membranes of Some