Cell Transport

Front

What is Simple Diffusion?

Back

The process by which molecules move from an area of higher concentration to an area of lower concentration without the need for energy.

Front

What is Facilitated Diffusion?

Back

A process where molecules pass through the cell membrane via protein channels, moving from high to low concentration without energy.

Front

What is Active Transport?

Back

The movement of molecules against their concentration gradient, requiring energy (ATP) to move substances from low to high concentration.

Front

What is Osmosis?

Back

The diffusion of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What happens to an animal cell in fresh water?

Back

The cell will swell and potentially burst due to water moving into the cell by osmosis.

Front

What is a Protein Channel?

Back

A type of transport protein that allows specific molecules to pass through the cell membrane.

Front

What is the difference between Passive and Active Transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their gradient.

Front

What is Concentration Gradient?

Back

The difference in the concentration of a substance between two areas, which drives diffusion.

Front

What is Tonicity?

Back

The ability of a solution to affect the shape of a cell by altering its internal water volume.

Front

What is Isotonic Solution?

Back

A solution where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.