BMAT Biology: The Cell (Part 3)

An advanced, interactive quiz on the Cell Membrane and Transport.

Problem 21: The Cholesterol Effect

Medium
Cell MembraneLipidsHomeostasisFluidity

A scientist is studying a cell line from a hibernating arctic mammal. As the environmental temperature drops, the cell membranes incorporate a higher concentration of cholesterol. What is the primary function of this adaptation?

A

To make the membrane more rigid and prevent it from breaking in the cold.

B

To increase the number of protein channels in the membrane.

C

To prevent the phospholipid tails from packing too closely, thereby maintaining membrane fluidity.

D

To assist in the active transport of sugars into the cell for energy.