Cell Transport

Front

What is Exocytosis?

Back

Exocytosis is the process by which cells move large particles out of the cell by vesicles fusing with the plasma membrane.

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What is Osmosis?

Back

Osmosis is the passive transport of water molecules through a selectively permeable membrane.

Front

What is Active Transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy, often in the form of ATP.

Front

What is Passive Transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, following the concentration gradient.

Front

What is Diffusion?

Back

Diffusion is the passive movement of particles from an area of higher concentration to an area of lower concentration.

Front

What is the Sodium-Potassium Pump?

Back

The sodium-potassium pump is a type of active transport that moves sodium ions out of the cell and potassium ions into the cell, crucial for maintaining cellular function.

Front

What is Facilitated Diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.

Front

What is Endocytosis?

Back

Endocytosis is the process by which cells take in large particles or liquids by engulfing them in a vesicle.

Front

What is the difference between Active and Passive Transport?

Back

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

Front

What is a Concentration Gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space, which drives diffusion.