Cell Transport Review

Front

What type of transport is the movement of molecules from an area of higher concentration to an area of lower concentration?

Back

Diffusion

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules across a selectively permeable membrane.

Front

What type of transport requires energy to move substances against their concentration gradient?

Back

Active transport

Front

What are protein pumps?

Back

Protein pumps are integral membrane proteins that use energy to transport ions or molecules across a cell membrane.

Front

What is the primary difference between passive and active transport?

Back

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

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of transporting substances across a cell membrane with the help of carrier proteins, without using energy.

Front

What role do ion channels play in cell transport?

Back

Ion channels facilitate the passive transport of ions across the cell membrane.

Front

What is the significance of the concentration gradient in diffusion?

Back

The concentration gradient drives the movement of molecules from areas of high concentration to areas of low concentration.

Front

How does temperature affect the rate of diffusion?

Back

Higher temperatures increase the kinetic energy of molecules, leading to a faster rate of diffusion.