Active Transport

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 in the form of ATP.

Front

What is Phagocytosis?

Back

Phagocytosis is a type of active transport where cells engulf large particles or other cells, often referred to as 'cell eating'.

Front

What is Pinocytosis?

Back

Pinocytosis is a form of active transport where cells take in small particles and liquids, often referred to as 'cell drinking'.

Front

What is Exocytosis?

Back

Exocytosis is the process by which cells expel materials in vesicles, requiring energy to fuse the vesicle with the cell membrane.

Front

What is Endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them with the cell membrane, requiring energy.

Front

What is the Sodium/Potassium Pump?

Back

The Sodium/Potassium Pump is a type of active transport mechanism that moves sodium ions out of the cell and potassium ions into the cell against their concentration gradients.

Front

What is the difference between Active and Passive Transport?

Back

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

Front

What is Receptor-Mediated Endocytosis?

Back

Receptor-mediated endocytosis is a selective form of endocytosis where cells take in specific molecules based on their interaction with receptors on the cell surface.

Front

What role does ATP play in Active Transport?

Back

ATP provides the energy required for active transport processes to move substances against their concentration gradients.

Front

What is the significance of Active Transport in cells?

Back

Active transport is crucial for maintaining cellular homeostasis, nutrient uptake, and waste removal.