Cell Membrane Quiz

What is the primary function of the cell membrane?

• To produce energy

• To transport genetic material

• To regulate the movement of substances in and out of the cell

• To store nutrients

Which model describes the structure of the cell membrane?

• Lock and Key Model

• Fluid Mosaic Model

• Protein Channel Model

• Hydrophobic Barrier Model

Which of the following is a component of the cell membrane?

• Phospholipids

• Nucleotides

• Ribosomes

• DNA

What type of transport does NOT require energy?

• Active Transport

• Diffusion

• Endocytosis

• Exocytosis

In facilitated diffusion, which molecules help transport substances across the membrane?

• Carbohydrates

• Proteins

• Lipids

• Cholesterol

What happens during osmosis?

• Solutes move from low concentration to high concentration

• Water moves from low solute concentration to high solute concentration

• Water moves from high solute concentration to low solute concentration

• Solutes move through the cell wall

Which of the following requires energy in the form of ATP?

• Diffusion

• Facilitated Diffusion

• Osmosis

• Active Transport

What is the role of glycoproteins in the cell membrane?

• They act as enzymes for chemical reactions

• They help in cell recognition and immune response

• They transport ions across the membrane

• They produce ATP for the cell

What is phagocytosis?

• The process of cells drinking fluid

• The process of cells engulfing large particles

• Passive movement of ions

• Diffusion of water molecules

Which of the following is an example of passive transport?

• Sodium-potassium pump

• Phagocytosis

• Diffusion

• Endocytosis