Active Transport

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP).

Front

What is the direction of movement in active transport?

Back

Active transport moves substances from low concentration to high concentration.

Front

What is a vesicle?

Back

A vesicle is a small compartment enclosed by a membrane, formed during the transport of materials in processes like endocytosis and exocytosis.

Front

What type of energy is required for active transport?

Back

Active transport requires energy in the form of ATP.

Front

What is a carrier protein?

Back

A carrier protein is a type of membrane protein that can transport substances across the membrane, often moving one substance in one direction while transporting another in the opposite direction.

Front

What is endocytosis?

Back

Endocytosis is a type of active transport that moves particles into a cell by enclosing them in a vesicle made from the plasma membrane.

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles that fuse with the plasma membrane.

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 role do ATP and energy play in active transport?

Back

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

Front

What is bulk transport?

Back

Bulk transport refers to the movement of large quantities of materials into or out of a cell, typically through endocytosis or exocytosis.