cell transport

Front

What is the job of the cell membrane?

Back

Allow things in and out of the cell.

Front

Diffusion is a form of __________ transport.

Back

Passive.

Front

Which process moves molecules from low to high concentration?

Back

Active transport.

Front

What is the movement of small particles across a selectively permeable membrane until equilibrium is reached?

Back

Diffusion.

Front

What is the movement of particles with the concentration gradient using protein 'helpers'?

Back

Facilitated diffusion.

Front

Define diffusion.

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is active transport?

Back

The movement of molecules against their concentration gradient, requiring energy.

Front

What is facilitated diffusion?

Back

The process of transporting molecules across a membrane via protein channels without energy.

Front

What does selectively permeable mean?

Back

A property of cell membranes that allows some substances to pass while blocking others.