Basic ReviewPt2: Osmosis & Active Transport

Front

What is the process called when white blood cells engulf invading bacteria?

Back

Endocytosis

Front

Osmosis is the diffusion of _____ across a selectively permeable membrane.

Back

water

Front

What does ATP stand for?

Back

Adenosine Triphosphate

Front

What is the term for the energy-requiring process that transports materials across the cell membrane?

Back

Active transport

Front

What is required for active transport across a cell membrane from low to high concentration?

Back

energy (ATP)

Front

Define osmosis.

Back

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

Front

What is the difference between passive transport and active transport?

Back

Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.

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 role does ATP play in cellular processes?

Back

ATP provides the energy needed for various cellular activities, including active transport.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.