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 is an example of active transport?

Back

The movement of salt from the blood into gland cells, despite a concentration gradient.

Front

What does it mean for solutes to move against the concentration gradient?

Back

It refers to the process of active transport, where solutes move from an area of lower concentration to an area of higher concentration.

Front

What is the main difference between active and passive transport?

Back

Active transport uses ATP (energy) while passive transport does not require energy.

Front

What is diffusion?

Back

The process where particles spread from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

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

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.

Front

Can active transport occur without energy?

Back

No, active transport requires energy in the form of ATP to move substances against their concentration gradient.

Front

What is an example of passive transport?

Back

The movement of oxygen from the lungs into the bloodstream by diffusion.

Front

What is the significance of the concentration gradient in transport processes?

Back

The concentration gradient determines the direction of movement for passive transport and is overcome by energy in active transport.