All cells contain cell membranes. Which of the following describes the composition of cell membranes?

Question

a
Cell membranes are composed of cytoplasm, which allows proteins to be excreted by the cell.
b
Cell membranes are composed of cellulose, which provide rigidity for the cell.
c
Cell membranes are composed of carbohydrate chains, which allow all materials to enter and leave the cell.
d
Cell membranes are composed of lipid molecules, which provide a flexible structure.

Answer 1

The correct option that describes the composition of cell membranes is:

d Cell membranes are composed of lipid molecules, which provide a flexible structure.

Cell membranes are primarily made up of a bilayer of phospholipids, along with proteins, cholesterol, and carbohydrates, which contribute to their structure and functionality. The lipid bilayer provides flexibility and serves as a barrier to the passage of substances, while proteins embedded in the membrane facilitate various functions, such as transport and signaling.