Question

multiple choice question
this image illustrates the membrane component termed a ______.
integral protein
phospholipid
hopanoid
peripheral protein

Explanation:

The structure shows a spherical (polar) head and two long nonpolar fatty acid tails, which matches the defining structure of a phospholipid, the primary structural component of cell membranes. Integral/peripheral proteins have different, more complex shapes, and hopanoids are steroid-like molecules without this distinct head-tail structure.

Answer:

B. phospholipid