Cell Transport 2

Front

Active transport requires _____ to move materials across the cell membrane.

Back

energy

Front

Which is true about active transport?

Back

It requires energy.

Front

The process where only water is allowed to pass through the cell membrane from a high to low concentration is called _____?

Back

osmosis

Front

Osmosis is the movement of _____ across a membrane.

Back

water

Front

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells. What is it?

Back

cell membrane

Front

What is the primary function of the cell membrane?

Back

To control the movement of substances in and out of the cell.

Front

Define diffusion.

Back

The movement of particles from an area of high concentration to an area of low concentration.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport does.

Front

What role do proteins play in active transport?

Back

Proteins act as pumps to move substances against their concentration gradient.

Front

What is homeostasis?

Back

The maintenance of a stable internal environment in an organism.