Cell Transport Review

What does it mean for a membrane to be partially permeable?

• 50% of the molecules can pass through it.

• No molecules can pass through it.

• Tiny holes called pores allow molecules to move through it.

• It allows some molecules to pass through it.

What is osmosis?

• The diffusion of gas.

• The movement of solutes.

• The diffusion of water.

• The movement of any solvent.

In which images do the arrows correctly show the direction of diffusion?

• A

• B

• C

• D

Which solute has the higher concentration of water?

• Solution 1

• Solution 2

Why do red blood cells in group A look different from a normal, healthy red blood cell?

• They have gained water.

• They have lost water.

• They have been attacked.

• They are symptom of sickle cell anemia.

What is diffusion?

• High to low

• Low to high

• High to equal

• Low to equal

True or False: Osmosis is an active process and requires extra energy for it to occur.

• True

• False

What happens to a cell in an isotonic solution?

• The cell gains water and swells.

• The cell loses water and shrinks.

• The cell neither gains nor loses water.

• The cell dissolves in the solution.

Where will the water go?

• Into the cell

• Out of the cell

• Equally in & out - it's isotonic

• There is no water

What is this process called?

• Endocytosis

• Exocytosis