Active Transport

Front

What is the definition of active transport?

Back

Movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

Front

What type of transport is characterized by the use of energy to move substances against their concentration gradient?

Back

Active Transport Pump.

Front

In the context of transport, what does endocytosis refer to?

Back

The process by which cells engulf substances from their external environment.

Front

What is facilitated diffusion?

Back

A process that allows substances to cross membranes with the assistance of special proteins, without the use of energy.

Front

What is osmosis?

Back

The movement of water molecules from a region of higher concentration to a region of lower concentration through a partially permeable membrane.

Front

What is the primary energy source used in active transport?

Back

ATP (Adenosine Triphosphate).

Front

What is exocytosis?

Back

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

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 concentration gradient.

Front

What is a concentration gradient?

Back

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

Front

What role do transport proteins play in active transport?

Back

Transport proteins help move substances across the cell membrane against their concentration gradient using energy.