Chapter 16- Cells Review & Cell transport

Front

Movement of particles from high to low concentration.

Back

Passive Transport

Front

Molecules will tend to spread out from an area of greater concentration to an area of lesser concentration. True or False?

Back

True

Front

Which biomolecule helps LARGE molecules cross the membrane?

Back

Proteins

Front

What is a job of the cell membrane?

Back

Regulates which materials enter and leave the cell.

Front

What does semi-permeable mean?

Back

Some molecules can move through the membrane.

Front

Define Active Transport.

Back

The movement of particles against a concentration gradient, requiring energy.

Front

What is diffusion?

Back

The process of molecules spreading from areas of high concentration to areas of low concentration.

Front

What role do phospholipids play in the cell membrane?

Back

They form the basic structure of the cell membrane, creating a barrier.

Front

What is osmosis?

Back

The diffusion of water across a semi-permeable membrane.

Front

What is the difference between passive and active transport?

Back

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