Cell Transport-USBT

Front

What is Osmosis?

Back

The movement of water molecules from an area of higher concentration to an area of lower concentration through a semi-permeable membrane.

Front

What is Diffusion?

Back

The process by which molecules spread from an area of high concentration to an area of low concentration.

Front

What is Active Transport?

Back

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy (ATP).

Front

What is Homeostasis?

Back

The process by which living organisms regulate their internal environment to maintain stable, constant conditions.

Front

What are the two types of passive transport?

Back

Diffusion and Osmosis.

Front

What is a Concentration Gradient?

Back

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

Front

What is Facilitated Diffusion?

Back

The process of passive transport of molecules across a biological membrane via specific transmembrane integral proteins.

Front

What role does ATP play in Active Transport?

Back

ATP provides the energy required to move substances against their concentration gradient.

Front

What is a Semi-Permeable Membrane?

Back

A membrane that allows certain molecules or ions to pass through it by diffusion and occasionally by facilitated diffusion.

Front

What is the difference between Passive and Active Transport?

Back

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