Passive Transport Review

Front

What is passive transport?

Back

Passive transport is the movement of particles across a membrane from an area of high concentration to an area of low concentration without the use of energy.

Front

What is the direction of movement in passive transport?

Back

From high concentration to low concentration.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move molecules across the cell membrane.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules from an area of high concentration of water (low solute concentration) to an area of low concentration of water (high solute concentration) across a semipermeable membrane.

Front

Is osmosis a type of passive transport?

Back

Yes, osmosis is a type of passive transport.

Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration.

Front

What factors affect the rate of diffusion?

Back

The rate of diffusion is affected by temperature, concentration gradient, and the size of the molecules.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space.

Front

What role do transport proteins play in facilitated diffusion?

Back

Transport proteins assist in the movement of specific molecules across the cell membrane during facilitated diffusion.

Front

What is the difference between passive transport and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.