Cells & Cell Transport

Front

What is the basic unit of life?

Back

The cell is the basic unit of life, and all living organisms are made up of one or more cells.

Front

What is the cell theory?

Back

The cell theory states that all living things are composed of cells, cells are the basic unit of life, and all cells come from pre-existing cells.

Front

What is a prokaryotic cell?

Back

A prokaryotic cell is a type of cell that does not have a nucleus or other membrane-bound organelles.

Front

What is a eukaryotic cell?

Back

A eukaryotic cell is a type of cell that has a nucleus and membrane-bound organelles.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane using energy, usually against a concentration gradient.

Front

What is passive transport?

Back

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

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of transporting molecules across a membrane via protein channels, without energy.

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell takes in materials by engulfing them in a membrane.