Question

______ prevents the phospholipids from sticking to each other and allows the cell membrane to maintain its structure.
glycolipids
peripheral proteins
integral proteins
cholesterol
rewatch

Explanation:

To solve this, we analyze each option:

• Glycolipids: Involved in cell recognition, not preventing phospholipid sticking.
• Peripheral proteins: Have roles in cell signaling/attachment, not structure maintenance for this purpose.
• Integral proteins: Mainly for transport/channel functions, not preventing phospholipid adhesion.
• Cholesterol: Fits as it intersperses in the phospholipid bilayer, preventing them from sticking and maintaining membrane structure (regulates fluidity/stability).

Answer:

The correct option is cholesterol (the last option, though the text shows "cholesterol" as the choice that prevents phospholipids from sticking and maintains cell membrane structure). If we assume the options are labeled (even if not fully visible, the correct one is cholesterol, so the option with "cholesterol" as the text).