Question

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semipermeable cell membranes are made of phospholipids that form a bilayer
what major benefit does this arrangement of the membrane provide to the cell?

• it allows interactions with polar and nonpolar molecules
• it prevents any interactions between the inside and outside of the cell
• it allows interactions with polar molecules only
• it allows interactions with nonpolar molecules only

Explanation:

Phospholipids have polar heads and nonpolar tails. The bilayer arranges polar heads outward (interacting with polar water) and nonpolar tails inward (interacting with nonpolar molecules). This structure enables the cell membrane to interact with both polar and nonpolar substances.

Answer:

It allows interactions with polar and nonpolar molecules