AP Bio Quiz: Diffusion & Osmosis Virtual Lab

Osmosis is the diffusion of _____ across a selectively permeable membrane.

• solutes
• salt
• water
• oxygen

When cells are placed in a __________ solution they begin to swell.

• Hypertonic
• Isotonic
• Hypotonic

A saltwater snail is placed in freshwater. What happens to its cells?

• They shrink
• They swell
• Nothing happens

Tags

NGSS.HS-LS1-3

If you looked at red blood cells under a microscope and saw the blood cells has shrunk, what would you say happened?

• The cells were placed in a hypotonic solution.
• The cells were placed in an isotonic solution
• The cells were placed in a hypertonic solution

 If a cell containing 5% salt is placed into a solution with 20% salt, the solution is _______ compared to the cell.

• hypertonic
• hypotonic
• isotonic

The membrane in the diagram is permeable to water but not to the purple molecules. Which way will the water move?

• From the  A side  to the B-side
• From the B side to the A side
• The water would not move
• Water molecules would move equally back and forth in a state of equilibrium

BONUS RANDOM TRIVIA: In the 1994 hit comedy "Dumb and Dumber," who is Petey? 

• a blind child
• a bird
• a dog
• a waiter