CCP Biology Osmosis/Diffusion/Water Potential/Cell Transport

Front

What is osmosis?

Back

The movement of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

Define diffusion.

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is water potential?

Back

A measure of the potential energy in water, determining the direction of water movement; it is influenced by solute concentration and pressure.

Front

What is a hypertonic solution?

Back

A solution with a higher solute concentration compared to another solution, causing water to move out of a cell.

Front

What is a hypotonic solution?

Back

A solution with a lower solute concentration compared to another solution, causing water to move into a cell.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and may shrivel due to the higher solute concentration outside.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will gain water and may swell or burst due to the lower solute concentration outside.

Front

What is exocytosis?

Back

The process by which cells expel materials in vesicles that fuse with the plasma membrane.

Front

Where are proteins synthesized for secretion?

Back

Proteins are synthesized in the rough endoplasmic reticulum (rough ER).

Front

What is the role of the Golgi apparatus?

Back

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.