Question

activity a:
observing
osmosis\tget the gizmo ready:
\t- click reset. set the initial cell volume to 40%.
\t- you will need a calculator for this activity.
question: how do solute concentrations affect the volume of a cell?

1. observe: use the solute outside slider to change the concentration of solute particle

click play. in each case, focus on whether the cell gets bigger or smaller.
\ta. in what situation does the cell get larger?
\tb. in what situation does the cell get smaller?

1. calculate: the concentration of a solute is the amount of solute particles in a given am

calculate percentage concentration, divide the number of solute particles by the total nur
(solute + solvent), and then multiply by 100:
\t% concentration = (solute ÷ total particles) × 100
select the description tab. click reset. set the solute outside to 10 and check that
volume is 40% (note: the cell volume is expressed as a percentage of the container size

Explanation:

1A.

The cell gets larger when the solute concentration outside the cell is lower than inside (hypotonic solution). Water moves into the cell via osmosis, increasing its volume.

The cell gets smaller when the solute concentration outside the cell is higher than inside (hypertonic solution). Water moves out of the cell via osmosis, decreasing its volume.

Answer:

When the solute concentration outside the cell is lower than inside the cell (hypotonic environment), the cell gets larger as water enters the cell through osmosis.

1B.