Question

question 10 (2 points)
which of the following best describes the cell membrane?

1. selective semipermeable membrane
2. double - layered structure with pores
3. sticky, semifluid material
4. network of tubular structures

Explanation:

The cell membrane (plasma membrane) is a phospholipid bilayer that regulates the movement of substances in and out of the cell. It allows some molecules to pass through while blocking others, which defines it as selectively semipermeable. Option 2 describes a structure like the nuclear envelope, option 3 refers to cytoplasm-like material, and option 4 describes endoplasmic reticulum.

Answer:

1. Selective semipermeable membrane