Cell Transport

Front

What is the definition of OSMOSIS?

Back

Diffusion of water through a selectively permeable membrane.

Front

What is ACTIVE TRANSPORT?

Back

Movement of molecules across the cell membrane against the concentration gradient.

Front

What is a SELECTIVELY PERMEABLE MEMBRANE?

Back

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

Front

What happens to a blood cell in an ISOTONIC solution?

Back

Water moves equally in and out of the cell.

Front

What is DIFFUSION?

Back

Movement of molecules from an area of high concentration to an area of low concentration.

Front

What is the role of PHOSPHOLIPIDS in the cell membrane?

Back

They form the basic structure of the cell membrane, creating a barrier.

Front

What is the difference between PASSIVE and ACTIVE TRANSPORT?

Back

Passive transport does not require energy, while active transport requires energy to move molecules against their concentration gradient.

Front

What is ENDOCYTOSIS?

Back

The process by which a cell takes in materials by engulfing them in a membrane.

Front

What is EXOCYTOSIS?

Back

The process by which a cell expels materials using vesicles.

Front

What is a CONCENTRATION GRADIENT?

Back

A difference in the concentration of a substance across a space.