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All cells contain cell membranes. Which of the following describes the composition of cell membranes?
A. Cell membranes are composed of carbohydrate chains, which allow all materials to enter and leave the cell.
B. Cell membranes are composed of cellulose, which provides rigidity for the cell.
C. Cell membranes are composed of cytoplasm, which allows proteins to be excreted by the cell.
D. Cell membranes are composed of lipid molecules, which provide a flexible structure.

Respuesta :

michellexbxy

Answer:

The cell membrane is selectively permeable.

Explanation:

A selectively permeable cell membrane is a cell membrane that concedes certain molecules, and/or ions to pass inside it by means of active or inactive transport.  Cell membrane assumes a vital part in saving up the homeostasis by regulating the substances that infiltrate the phone, either opening the phone or leaving the phone.

Milliecartier

Answer:

Option D.

Explanation:

The cell membrane is made up of a phospholipid bilayer which is semipermeable.

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