Cell Membrane Permeability Quiz

What is the primary function of the cell membrane?

• To control what enters and leaves the cell

• To provide energy to the cell

• To store genetic information

• To produce proteins

Which type of molecules can easily pass through the cell membrane?

• Starch

• Small simple molecules

• Proteins

• Large complex molecules

How do small molecules typically enter or leave the cell?

• Through active transport

• By osmosis

• By diffusion

• Through endocytosis

Why is digestion important for nutrient absorption?

• It breaks down large molecules into smaller, permeable ones

• It increases the size of molecules

• It stores nutrients for later use

• It converts nutrients into energy

Which of the following is NOT permeable to the cell membrane without digestion?

• Oxygen

• Protein

• Water

• Glucose