Cell Membrane Quiz

Which molecules form the bilayer of the cell membrane?

• carbohydrates

• cholesterols

• phospholipids

• proteins

The plasma membrane is a (a)   .

• Protein monolayer

• Phospholipid bilayer
• Carbohydrate layer

• Phospholipid monolayer

What is Brownian motion?

• The random movement of particles in a fluid

• The organized movement of particles in a solid

• The random movement of particles in a solid

• The organized movement of particles in a fluid

What does the 'fluid' in 'fluid mosaic model' refer to?

• The solution/fluid surrounding cell membranes.

• The high permeability of the membrane that allows water to move through the bilayer.

• The presence of water molecules embedded in the membrane.

• The ability of phospholipids to move independently of each other in the membrane bilayer.

What remains unchanged at dynamic equilibrium during diffusion?

• Temperature

• Concentration

• Pressure

• Direction of movement

Match the following

• Equal concentration of solutes

• Diffusion

• Movement of water across a semipermeable membrane

• Osmosis

• Higher concentration of solutes outside the cell

• Hypotonic solution

• Lower concentration of solutes outside the cell

• Isotonic solution

• Movement of molecules from high to low concentration

• Hypertonic solution

Which type of protein allows bigger molecules to pass through the membrane?

• Peripheral proteins

• Channel proteins

• Enzymes

• Structural proteins

In passive transport, what is the role of the concentration gradient?

• It provides energy

• It determines the direction of movement

• It blocks movement

• It has no role

Match the following image to its solution.

• Hypertonic solution

• 
• Hypotonic solution

• 
• Isotonic solution

• 

Tags

NGSS.HS-LS2-3

If Letter A in the image represents solvent, Letter C represents the (a)   .

Tags

NGSS.HS-PS1-5