Cell Membrane Structure

What is the basic structure of the cell membrane?

• Phospholipid bilayer

• Carbohydrate trilayer

• Lipid monolayer

• Protein monolayer

What are the main components of the cell membrane?

• phospholipids, proteins, cholesterol

• lipids, carbohydrates, nucleic acids

• phospholipids, carbohydrates, lipids

• proteins, carbohydrates, nucleic acids

How does the cell membrane maintain its fluidity?

• High temperature causing rigidity

• Single layer of phospholipids with saturated fatty acids

• Phospholipid bilayer structure with unsaturated fatty acids, cholesterol molecules, and proteins

• Lack of proteins in the membrane

Explain the role of phospholipids in the cell membrane.

• Phospholipids are responsible for energy production in the cell membrane

• Phospholipids play a crucial role in maintaining the structure and function of the cell membrane by forming a selectively permeable barrier.

• Phospholipids are only found in the nucleus

• Phospholipids have no role in the cell membrane

What is the significance of cholesterol in the cell membrane?

• Cholesterol helps maintain membrane fluidity, stability, and structure while regulating membrane protein function.

• Cholesterol prevents the movement of molecules across the membrane

• Cholesterol increases membrane permeability

• Cholesterol has no impact on membrane structure