Cell Transport

Front

What is endocytosis?

Back

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

Front

What is exocytosis?

Back

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

Front

What type of transport is exocytosis classified as?

Back

Exocytosis is classified as Active Transport.

Front

What is passive transport?

Back

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

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy (ATP) to occur.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance between two areas, which drives the movement of substances during transport.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the role of carrier proteins in facilitated diffusion?

Back

Carrier proteins assist in the transport of specific molecules across the cell membrane by changing shape to allow the molecule to pass through.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances with the concentration gradient, while active transport requires energy to move substances against the concentration gradient.