Cell Transport

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them with their cell membrane.

Front

What is pinocytosis?

Back

Pinocytosis is a type of endocytosis where the cell takes in liquid substances.

Front

What happens to a cell in a hypotonic solution?

Back

A cell will swell and perhaps burst (lyse) in a hypotonic solution due to water entering the cell.

Front

What occurs when a cell is placed in a hypertonic solution?

Back

Water moves from the inside of the cell to the hypertonic solution, causing the cell to shrink.

Front

What are two examples of passive transport?

Back

Diffusion and Osmosis are two examples of passive transport.

Front

Define diffusion.

Back

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

Front

Define osmosis.

Back

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

Front

What is exocytosis?

Back

Exocytosis is the process by which cells expel materials by vesicles fusing with the cell membrane.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain substances to pass through while blocking others.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.