Question

which of the following biomolecules are the primary component of cell membranes?
○ carbohydrates
○ lipids
○ proteins
○ nucleic acids

Explanation:

Cell membranes are primarily composed of lipids, specifically phospholipids which form a bilayer. Carbohydrates are on the membrane surface for recognition, proteins have various functions like transport but are not the primary structural component, and nucleic acids are for genetic information, not membrane structure.

Answer:

B. Lipids