2-4 Potato Lab

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What happens to a potato in distilled water?

Back

The potato gains mass because water moves into the potato cells by osmosis, causing them to swell.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, leading to water moving out of cells.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, causing water to move into cells.

Front

What is an isotonic solution?

Back

An isotonic solution has the same concentration of solutes as another solution, resulting in no net movement of water.

Front

What effect does a 90% salt saline drip have on human cells?

Back

It causes cells to shrivel because the saline is hypertonic compared to the fluid inside the cells.

Front

What is the purpose of a control solution in an experiment?

Back

A control solution is used as a standard for comparison to determine the effect of the experimental variable.

Front

What is the main purpose of the potato lab?

Back

The main purpose was to see the effect of salt on a potato.

Front

What is the role of water in osmosis?

Back

Water moves to balance solute concentrations on both sides of a membrane.

Front

What happens to cells in a hypotonic solution?

Back

Cells swell and may burst due to water influx.