Biology Cell transport and cell membrane

Front

What does the sodium-potassium pump do?

Back

It pumps sodium out of the cell and potassium into the cell.

Front

What is an example of facilitated diffusion?

Back

Glucose transport.

Front

What does it mean when a membrane is selectively permeable?

Back

Some molecules can cross the membrane while others cannot.

Front

What describes the arrangement of the cell membrane as bendable and made of many parts?

Back

The Fluid Mosaic Model.

Front

What is exocytosis?

Back

A form of active transport where materials are expelled from the cell.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy, while passive transport does not.

Front

What role do transport proteins play in the cell membrane?

Back

They help move substances across the membrane.

Front

What is endocytosis?

Back

A process where the cell engulfs material from the outside environment.