Which of these biomolecules increase membrane fluidity and help prevent the cell membrane from freezing?
cholesterol
saturated fat
O unsaturated
fat
U DNA

Cholesterol

Explanation:

Cholesterol is a lipid molecule produced by the liver, then transported to the membranes of animal cells. Cholesterol, which is found embedded in the plasma membrane of animal cells alongside other molecules like phospholipids, plays a vital role there.

The cholesterol of animal cell membranes help increase the fluidity of the membrane and also helps prevent the membrane from freezing during low temperatures.

i think the answer is b.

carbon atoms, hydrogen, oxygen, and nitrogen.