Cell Transport

Front

What happens to a cell placed in a hypertonic solution?

Back

Water moves from the inside of the cell to the solution.

Front

What is true about active transport?

Back

It requires energy.

Front

Name two examples of passive transport.

Back

Diffusion and Osmosis.

Front

What does active transport require, and how does it move materials?

Back

Active transport requires ATP, moves materials from low to high concentration, and goes against the concentration gradient.

Front

What is the difference in concentration of a substance from one location to another called?

Back

Concentration gradient.

Front

Define diffusion.

Back

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

Front

Define osmosis.

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the main difference between passive and active transport?

Back

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

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is the role of ATP in active transport?

Back

ATP provides the energy needed to move substances against their concentration gradient.