Question

which component of the cell membrane functions to actively transport molecules into the cell?
carbohydrates
nucleic acids
lipids
proteins

Explanation:

Cell membrane components:

• Carbohydrates: Involved in cell - cell recognition and adhesion.
• Nucleic acids: Not a major component of the cell membrane; main role in storing and transmitting genetic information.
• Lipids: Form the basic structure (lipid bilayer) of the cell membrane, providing a barrier.
• Proteins: Include transport proteins. Active transport requires carrier proteins (a type of membrane - bound protein) to move molecules against their concentration gradient.

Answer:

Proteins