Question

PLEASE HELP ME! AND SELECT ALL THE ANSWERS! PLEASE AND THANK YOU!

Which statements describe the structure of cell membranes?
Select all that apply.

- Proteins, lipids, and carbohydrates are found in and on the cell membrane.
- A single layer of phospholipids forms the semipermeable cell membrane.
- The cell membrane contains proteins and lipids, but not carbohydrates.
- A phospholipid bilayer forms the semipermeable cell membrane.

Answer 1

I think that it is

B. A single layer of phospholipids forms the semipermeable cell membrane

C. The cell membrane contains proteins and lipids, but not carbohydrates.

D. A phospholipid bilayer forms the semipermeable cell membrane.

I hope that this helps you!

Answer 2

The correct statements that describe the structure of cell membrane are:

• Proteins, lipids, and carbohydrates are found in and on the cell membrane.
• A phospholipid bilayer forms the semipermeable cell membrane.

The plasma membrane or cell membrane of organisms is made up of a bilayer of phospholipids in which proteins, carbohydrates, glycoproteins, and glycolipids are embedded. In animal cells, there is cholesterol too.

The biological membranes of cells are made up of two layers of phospholipid. Each layer contains a lipid tail attached to a polar head. The head is polar in nature directed both outward toward the environment of the cell and inward toward the cytosol.

In this way, a hydrophobic region of lipid tails separates the solution into two parts. That makes it a semipermeable membrane.

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