Bio II Chapter 3 - Cell Membrane & Membrane Transport

Front

What is cytolysis?

Back

Cytolysis is the process where a cell bursts due to an influx of water, often occurring in a hypotonic environment.

Front

What is simple diffusion?

Back

Simple diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

Front

What role do lysosomes play in endocytosis?

Back

Lysosomes dissolve vesicles that enter the cell through endocytosis, breaking down the materials inside.

Front

What is the function of membrane proteins?

Back

Membrane proteins facilitate various functions including transport of substances, acting as enzymes, and serving as receptors.

Front

What is osmosis?

Back

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

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is turgor pressure?

Back

Turgor pressure is the pressure of the cell contents against the cell wall in plant cells, helping maintain structure and rigidity.

Front

What is plasmolysis?

Back

Plasmolysis is the process where cells lose water in a hypertonic solution, causing the cell membrane to pull away from the cell wall.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells internalize substances from their external environment by engulfing them in a vesicle.