OSMOSIS/DIFFUSION

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 does passive transport require?

Back

Passive transport requires no energy.

Front

What regulates what enters and leaves a cell?

Back

The Cell Membrane regulates what enters and leaves a cell.

Front

What is the process shown in the picture?

Back

The process is diffusion.

Front

What happens to a cell placed in a hypotonic environment?

Back

A cell placed in a hypotonic environment will swell as water enters the cell.

Front

Define osmosis.

Back

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

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is an isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is the same inside and outside the cell, resulting in no net movement of water.

Front

What is the role of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell.