Diffusion & Osmosis Review

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a semi-permeable membrane from an area of low concentration to an area of high concentration.

Front

What happens to a cell in a hypertonic solution?

Back

A cell in a hypertonic solution will shrink because water moves out of the cell.

Front

Why can't ocean fish survive in freshwater?

Back

Freshwater is hypotonic to ocean fish cells, causing water to enter the cells and potentially make them swell and burst.

Front

What causes a cell to shrink?

Back

A cell will shrink when placed in a solution containing a high salt concentration.

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, leading to water entering the cell.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, leading to water leaving the cell.

Front

What is an isotonic solution?

Back

An isotonic solution has an equal concentration of solutes inside and outside the cell, resulting in no net movement of water.

Front

What is the role of a semi-permeable membrane in osmosis?

Back

A semi-permeable membrane allows only certain molecules, like water, to pass through while blocking others.

Front

What happens to a cell in an isotonic solution?

Back

In an isotonic solution, a cell remains the same size because water moves in and out at equal rates.