Passive and Active Transport

Front

What is osmosis?

Back

Osmosis is a form of passive transport that specifically refers to the diffusion of water across a selectively permeable membrane.

Front

What does permeable mean?

Back

Permeable means that things can pass through.

Front

What is the process called when water diffuses across a membrane?

Back

The diffusion of water across a membrane is called osmosis.

Front

What type of transport occurs from low to high concentration?

Back

Active Transport.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is active transport?

Back

Active transport is the movement of molecules across a membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, typically from high to low concentration.

Front

Give an example of diffusion in everyday life.

Back

An example of diffusion is when someone sprays air freshener and the scent fills the room.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane is a barrier that allows certain substances to pass through while blocking others.

Front

What is equilibrium in the context of diffusion?

Back

Equilibrium is the state reached when the concentration of molecules is equal throughout a space.