Cell Transport

Front

What is endocytosis?

Back

Endocytosis is a process by which cells take in substances by engulfing them in a membrane. It is a form of active transport.

Front

What process allows water to move into or out of cells?

Back

Osmosis is the process that allows water to move into or out of cells.

Front

What is osmosis?

Back

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

Front

What type of transport is osmosis classified as?

Back

Osmosis is classified as passive transport.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy.

Front

What is required for active transport to occur?

Back

Active transport requires energy to move materials across the cell membrane.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically along the concentration gradient.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance across a space, which drives the movement of substances during diffusion and osmosis.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration.

Front

What is the role of proteins in active transport?

Back

Proteins act as pumps or carriers that help move substances across the cell membrane during active transport.