Cell Membrane and Passive Transport Quiz Review

What is an isotonic solution?

• When solutions are in equilibrium 
• When the solution has more solute 
• When the solution has less solute 
• Has a greater pressure 

Allows certain molecules or ions to pass through it by diffusion and doesn't allow others.

• protein
• semi-permeable membrane
• isotonic

Particles are too large to enter the membrane.
Need help from channel proteins.
No energy

• active transport
• passive transport
• facilitated diffusion

Diffusion of water across a cell membrane
high to low.

• osmosis
• active transport
• protein channel

Main compents of the cell membrane that forms 2 layers

• Cholesterol

• Transport proteins

• Carrier proteins

• Phospholipids

which way would the purple molecules move through the semi permeable membrane?

• From the  A side  to the B-side
• From the B side to the A side
• none of the purple molecules would move

What is this image?

• cell membrane
• proteins
• carbohydrates
• lipids

What do the brown structures represent?

• Phospholipids
• Glycoproteins
• Channel Proteins 
• Cyctoskeleton Filaments

In ___________________________, small, non polar substances pass directly through the cell membrane

• facilitated diffusion

• simple diffusion

• endocytosis

• osmosis

Which of the following is the moving of substances from high concentrations to low concentrations?

• active transport

• passive transport

• endocytosis

• sodium-potassium pump