Diffusion and Osmosis Review

Front

What is diffusion?

Back

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

Front

What does 'high concentration area' mean?

Back

A high concentration area means that the molecules are tightly packed together.

Front

Where is there a low concentration of dye in a cup?

Back

There is a low concentration of dye at the bottom of the cup.

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that selects or chooses what materials may pass through it.

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 happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance between two areas.

Front

What is equilibrium in terms of diffusion?

Back

Equilibrium is the state reached when the concentration of molecules is the same throughout a space.

Front

What role does temperature play in diffusion?

Back

Higher temperatures increase the energy of molecules, leading to faster diffusion.