Cell Organelles/Cell Transport

Front

What is an isotonic solution?

Back

An isotonic solution is one where the solute concentration is equal inside and outside the cell, resulting in no net movement of water.

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 type of transport requires ATP?

Back

Active transport processes, such as exocytosis and endocytosis, require ATP to move substances against their concentration gradient.

Front

What is the function of lysosomes?

Back

Lysosomes are organelles that contain digestive enzymes to break down waste materials and cellular debris.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher solute concentration outside the cell than inside, causing water to move out of the cell.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower solute concentration outside the cell than inside, causing water to move into the cell.

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 is the role of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, providing protection and structural support.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their gradient.

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles that fuse with the plasma membrane.