Which level of permeability best describes the cell membrane?

Question

Quizplus · Accepted Answer

Phospholipids are molecules composed of two parts: a hydrophilic (attracts water) phosphate head and a hydrophobic (repels water) lipid tail.
The cell membrane consists of a bilayer of phospholipids where the phospholipids line up tail-to-tail. This bilayer creates a hydrophobic region between two layers of lipids, making it selectively permeable.
Selectively permeable means that the cell membrane allows specific molecules or ions to pass through it while keeping others out.
 11ec0fda_9977_e039_a67f_5994d5c44c29_NR0004_00 Detailed diagram of the cell membrane

Which Level of Permeability Best Describes the Cell Membrane