Cell Membrane & Transport

Front

What is the sodium potassium pump an example of?

Back

Active Transport

Front

What occurs during diffusion?

Back

Molecules move from high to low concentration.

Front

What is the general name for movement of substances across cell membranes without energy input?

Back

Passive Transport

Front

Diffusion is a form of __________ transport.

Back

Passive

Front

Passive Transport uses ____ energy.

Back

No

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is facilitated diffusion?

Back

A process that allows substances to cross membranes with the assistance of special proteins.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What does it mean for a membrane to be selectively permeable?

Back

It allows certain substances to pass while blocking others.

Front

What is endocytosis?

Back

The process by which cells take in substances by engulfing them.