Question

which biomolecules make up cell membranes? select all correct options. 1. carbohydrate 2. lipid 3. nucleic acid protein

Explanation:

Cell membranes are primarily composed of lipids (phospholipids forming a bilayer) and proteins (embedded in or associated with the lipid bilayer). Carbohydrates are present on the outer - surface of cell membranes often attached to lipids or proteins. Nucleic acids are mainly involved in genetic information storage and transfer and are not a major component of cell membranes.

Answer:

1. Carbohydrate
2. Lipid
3. Protein