Active Transport

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 is the role of ATP in active transport?

Back

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

Front

What is exocytosis?

Back

Exocytosis is a type of active transport where materials are expelled from a cell through vesicles that fuse with the cell membrane.

Front

What is endocytosis?

Back

Endocytosis is a type of active transport where cells engulf substances from their external environment.

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 down their 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 osmosis?

Back

Osmosis is the passive movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What happens to a cell without ATP?

Back

Without ATP, a cell would not have enough energy to perform active transport.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas.

Tags

NGSS.HS-PS1-5

Front

What is the significance of active transport in plants?

Back

Active transport allows plant roots to absorb essential minerals from the soil, even when they are in lower concentration compared to the root cells.