Cell Transport

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What role does the cell membrane play in a cell?

Back

The cell membrane helps maintain homeostasis by controlling what substances may enter or leave the cell.

Front

What is endocytosis?

Back

Endocytosis is the process by which large substances are taken into a cell using energy.

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, which requires energy.

Front

What is the difference between passive and active transport?

Back

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

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of moving molecules across a cell membrane through protein channels, without the use of energy.

Front

What is the function of a vacuole?

Back

A vacuole is a storage organelle in a cell that can hold various substances, including nutrients and waste products.

Front

What is the significance of concentration gradients in cell transport?

Back

Concentration gradients drive the movement of substances; molecules move from areas of high concentration to areas of low concentration in passive transport.

Front

What is exocytosis?

Back

Exocytosis is the process by which substances are expelled from a cell using energy.

Front

What is the cell wall?

Back

The cell wall is a rigid outer layer found in plant cells that provides structure and support, but is not involved in transport.