H Homeostasis in Cells Vocab

Front

What is homeostasis?

Back

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

Front

What is passive transport?

Back

The movement of molecules across a cell membrane without the use of energy, moving from high to low concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is 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 help move molecules across the cell membrane.

Front

What is active transport?

Back

The energy-requiring process that moves material across a cell membrane against a concentration gradient, from low to high concentration.

Front

What are transport proteins?

Back

Proteins that assist in the movement of substances across a cell membrane.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is concentration gradient?

Back

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

Front

What is equilibrium in terms of concentration?

Back

A state where the concentration of a substance is equal throughout a space.