The Flexibility of a Cell's Membrane is Determined by the Ratio

Question

The flexibility of a cell's membrane is determined by the ratio of _____________ to ___________.
A)protein,carbohydrate
B)cholesterol,protein
C)phospholipids,protein
D)cholesterol,phospholipids

Accepted Answer

The flexibility of a cell's membrane is determined by the ratio of cholesterol to phospholipids. Cholesterol acts as a fluidity buffer that helps regulate the fluidity of the membrane, while phospholipids make up the bulk of the membrane and determine its fluidity. Protein and carbohydrate molecules in the membrane play other roles such as transport and signaling but do not significantly affect membrane flexibility.