Unit2.1 Flashcard2 - Cell Transport - longer

Front

What is Exocytosis?

Back

Exocytosis is a form of active transport where large amounts of materials are released from the cell. This occurs when a vacuole fuses with the cell membrane and expels wastes.

Front

What is Diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

Front

What is an Isotonic solution?

Back

An isotonic solution is when there is an equal concentration of solute inside and outside of the cell, causing water to move equally in and out of the cell.

Front

What does Equilibrium mean in the context of diffusion?

Back

Equilibrium is when the concentration of molecules becomes equal, resulting in molecules moving in both directions in equal amounts.

Front

What is the difference between Hypertonic and Hypotonic solutions?

Back

A hypertonic solution has a higher concentration of solute outside the cell, causing water to move out of the cell. A hypotonic solution has a lower concentration of solute outside the cell, causing water to move into the cell.

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 Facilitated Diffusion?

Back

Facilitated diffusion is a passive transport process where molecules move across the cell membrane with the help of transport proteins.

Front

What is Osmosis?

Back

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

Front

What happens to a cell in a Hypertonic solution?

Back

In a hypertonic solution, the cell loses water and may shrivel due to the higher concentration of solute outside the cell.

Front

What happens to a cell in a Hypotonic solution?

Back

In a hypotonic solution, the cell gains water and may swell or burst due to the lower concentration of solute outside the cell.