Cell Transport

Front

What is the sodium-potassium pump an example of?

Back

Active Transport

Front

What type of molecular transport is endocytosis?

Back

Endocytosis is a type of active transport where cells engulf materials from the outside environment.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of transporting molecules across a cell membrane through protein channels from an area of high concentration to low concentration.

Front

Which of the following is NOT an example of active transport?

Back

Osmosis is NOT an example of active transport; it is a passive process.

Front

What type of transport is diffusion?

Back

Diffusion is a form of Passive transport.

Front

Define osmosis.

Back

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

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 require energy and moves substances along their concentration gradient.

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles that fuse with the cell membrane.

Front

What role do protein pumps play in cell transport?

Back

Protein pumps are integral membrane proteins that use energy to transport ions or molecules across the cell membrane against their concentration gradient.

Front

What is the main function of the cell membrane in transport?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.