Diffusion & Osmosis

Front

What is diffusion?

Back

Diffusion is the process where molecules move from an area of high concentration to an area of low concentration.

Front

What happens to cells in a hypertonic solution?

Back

Cells lose water and shrink in a hypertonic solution.

Front

What happens to cells in a hypotonic solution?

Back

Cells gain water and expand in a hypotonic solution.

Front

What is osmosis?

Back

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

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain substances to pass through while blocking others.

Tags

NGSS.MS-LS1-2

Front

What is the effect of salt water on gummy bears?

Back

Gummy bears placed in salt water will lose water and shrink due to osmosis.

Tags

NGSS.MS-LS2-1

Front

What is the concentration of water inside a cell in a hypotonic solution?

Back

In a hypotonic solution, the concentration of water inside the cell is higher than outside.

Front

Can substances other than water cross cell membranes?

Back

Yes, other substances can also cross cell membranes, not just water.

Front

What is the role of concentration gradients in diffusion?

Back

Concentration gradients drive the movement of molecules during diffusion, moving from high to low concentration.

Front

What is equilibrium in the context of diffusion?

Back

Equilibrium is the state where the concentration of molecules is equal on both sides of a membrane.