Front

What is active transport?

Back

Active transport is the 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 uses energy to move substances against their concentration gradient?

Back

Active transport.

Front

What is the role of transport proteins in active transport?

Back

Transport proteins change shape to push molecules through the membrane of the cell.

Front

What energy molecule is commonly used in active transport?

Back

ATP (Adenosine Triphosphate).

Front

What is the difference between active transport 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 concentration gradient.

Front

What is an example of active transport?

Back

The sodium-potassium pump, which moves sodium ions out of the cell and potassium ions into the cell.

Front

What is endocytosis?

Back

Endocytosis is a type of active transport where cells engulf substances to bring them into the cell.

Front

What is exocytosis?

Back

Exocytosis is a process where cells expel materials in vesicles, requiring energy.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a passive transport process that uses transport proteins to help move substances across the cell membrane without energy.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance across a space.