Biology: Cell Transport

Front

What is Facilitated Diffusion?

Back

A type of passive transport that uses protein channels to help move molecules across the cell membrane without using energy.

Front

What is the role of cell walls in plant cells?

Back

Cell walls protect plant cells from swelling too much by providing structural support and preventing excessive water intake.

Front

Define Equilibrium in the context of cell transport.

Back

A state where particles are evenly distributed, and there is no net movement of particles in any direction.

Front

What is Active Transport?

Back

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is Exocytosis?

Back

The process by which large particles, cell products, or waste are expelled from a cell by vesicles fusing with the cell membrane.

Front

What is Osmosis?

Back

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

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What is Diffusion?

Back

The movement of particles from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Front

What do cells need for Active Transport?

Back

Cells require energy, usually in the form of ATP, to transport substances against their concentration gradient.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others, crucial for maintaining homeostasis.

Front

What is Homeostasis?

Back

The process by which living organisms regulate their internal environment to maintain stable, constant conditions.