06 Cells and cell transport BioIA

Front

What is passive transport?

Back

Movement across the cell membrane that does not require energy.

Front

What is active transport?

Back

Movement across the cell membrane that requires energy.

Front

What is endocytosis?

Back

The process by which cells take in substances by engulfing them.

Front

What is exocytosis?

Back

The process by which cells expel substances by vesicles fusing with the membrane.

Front

What is osmosis?

Back

The movement of water across a selectively permeable membrane.

Front

What does isotonic mean?

Back

A solution with the same concentration of solutes as another solution.

Front

What does hypotonic mean?

Back

A solution with a lower concentration of solutes compared to another solution.

Front

What does hypertonic mean?

Back

A solution with a higher concentration of solutes compared to another solution.

Front

What type of molecules can pass through the cell membrane easily?

Back

Small nonpolar molecules like oxygen (O2) and carbon dioxide (CO2).

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a membrane via specific transmembrane proteins.