Question

6 multiple choice 1 point
the plasma membrane is primarily composed of:
proteins only
dna and proteins
lipid bilayer with embedded proteins
carbohydrates and rna

Explanation:

The plasma membrane's primary structure is the lipid bilayer (phospholipids), with proteins embedded or attached to it (fluid mosaic model). Other options are incorrect: proteins alone miss the lipid base; DNA/proteins are for chromatin; carbs/RNA are not main components.

Answer:

Lipid bilayer with embedded proteins