Question

Which of the following types of molecules are the major structural components of the cell membrane?
A) phospholipids and cellulose
B) nucleic acids and proteins
C) phospholipids and proteins
D) proteins and cellulose
E) glycoproteins and cholesterol

Answer 1

Hello! Your answer is C, phospholipids and proteins.

Phospholipids make up what is known as a phospholipid bilayer. This phospholipid bilayer makes up most of the cell membrane. The phospholipids face outwards, with their hydrophilic heads facing out and their hydrophobic tails facing inside. (You can imagine a phospholipid to look like a tadpole with two tails).

Proteins are also located in the cell membrane to perform various functions. They can serve as channels to transport material, act as enzymes, and serve as receptors. These proteins can be seen as blobs located throughout the membrane.

Hope this helps!

Answer 2

The major structural components of the cell membrane are phospholipids and proteins. The correct option would be C.

The cell membrane is an organelle that delimits the cell. It acts as a barrier between the cell and the environment and acts to maintain homeostasis in the cell by selectively allowing materials to enter or exit the cell.

The cell membrane is made largely of proteins, about 60% actually while phospholipids make up a large chunk of the rest. The phospholipids form a bilayer while the proteins are either embedded in the phospholipids bilayer or at the surface of the cell itself. The latter are known as peripheral proteins while the former are known as integral proteins.

More on the structure of the cell membrane can be found here:  https://brainly.com/question/15191419