Reviewing Solutions

In osmosis, water moves down the concentration gradient: from an area of ___ concentration to an area of __ concentration.

• high, low

• low, low

• low, high

• high, high

Water moves toward the area that...

• has more solute per water (higher solute concentration)

• has less solute per water (lower solute concentration)

A solution in which the salt concentration is HIGHER outside the cell than the salt concentration inside the cell is called

• a hypotonic solution

• an isotonic solution

• a cytotonic solution

• a hypertonic solution

When the concentration of molecules on both sides of a membrane is the SAME, the solution is

• hypotonic

• hypertonic

• isotonic

• cytotonic

A slice of potato is placed in saltwater. Then, it is moved to a solution that is 100% pure water. What changes would occur to the cell after it is placed in pure water?

• The cell will lose sugars to balance the environments.

• The cell will become turgid (filled) when water enters.

• The cell will remain the same.

• The cell would become soft because it will lose water.

If a cell is placed into a hypertonic solution...

• it will swell (and maybe burst, if it does not have a cell wall)

• it will lose water and shrivel (or undergo plasmolysis if it has a cell wall)

• the cell membrane will be disrupted

• all of these will occur

If a saltwater fish is placed into a freshwater aquarium, it will die because

• the high solute concentration inside of the cells of the fish will cause too much water to enter the cells

• the low solute concentration inside of the cells of the fish will cause too much water to enter the cells

• the low solute concentration inside of the cells of the fish will cause too much water to leave the cells

• the high solute concentration inside of the cells of the fish will cause too much water to leave the cells

When a cell fills with so much water that it bursts:

• Plasmolysis

• Turgid

• Cytolysis

• Equilibrium

What is pictured here?

• Plasmolysis

• Hypotonic Movement

• Cytolysis

• Equilibrium