Flashcard: Cell Membrane & Cell Transport

Front

What is Exocytosis?

Back

The process by which large particles, often waste materials, are released from the inside of the cell to the outside.

Front

What is Facilitated Diffusion?

Back

A type of transport that uses transport (channel) proteins to help molecules move from higher to lower concentrations.

Front

What does Hypertonic mean in relation to cells?

Back

A solution that has a higher concentration of solutes compared to the inside of the cell, causing water to leave the cell.

Front

Define Homeostasis.

Back

A balance that an organism maintains by regulating what goes into and out of the cell.

Front

What happens to a cell in a Hypertonic solution?

Back

Water will leave the cell, causing it to shrink.

Front

What is Osmosis?

Back

The movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the difference between Active Transport and Passive Transport?

Back

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

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is Plasmolysis?

Back

The process in which cells lose water in a hypertonic solution, causing the cell membrane to pull away from the cell wall.

Front

What is Diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration until equilibrium is reached.