Unit 2 review cell membrane

Front

What type of solution causes cells to swell and potentially burst?

Back

Hypotonic solution.

Front

What are the three types of passive transport?

Back

Diffusion, osmosis, facilitated diffusion.

Front

What is the cellular energy required for active transport?

Back

ATP.

Front

Active transport moves substances from an area of __________ concentration to __________ concentration.

Back

Low concentration to high concentration.

Front

What is a glycoprotein?

Back

A molecule that consists of a carbohydrate attached to a protein, playing a role in cell recognition.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

Define diffusion.

Back

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

Front

What is facilitated diffusion?

Back

A process of passive transport that uses transport proteins to move molecules across the membrane.

Front

What role does cholesterol play in the cell membrane?

Back

Cholesterol helps to maintain membrane fluidity and stability.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.