A:
Proteins And Carbohydrates
B:
Proteins And Lipids
C:
Proteins, Lipids And Carbohydrates
D:
Proteins, Some Nucleic Acid And Lipids
Explanation
The plasma membrane, also known as the cell membrane, is composed of a phospholipid bilayer with embedded proteins and carbohydrates. The phospholipid bilayer is composed of two layers of phospholipids, with the hydrophobic tails facing inward and the hydrophilic heads facing outward.
Proteins are embedded in the phospholipid bilayer and can serve a variety of functions such as transport, cell signaling, and enzymatic activity. Carbohydrates can be attached to the proteins or lipids on the surface of the cell membrane and can play a role in cell recognition and communication.
Therefore, the correct answer is C: Proteins, lipids, and carbohydrates.
