Active and Passive 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).

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What is Passive Transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, following the concentration gradient.

Front

What happens to a red blood cell in distilled water?

Back

The red blood cell will swell and burst due to the influx of water.

Front

What is Osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

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What is Equilibrium in terms of concentration?

Back

Equilibrium is the state where the concentrations of two substances are balanced and there is no net movement of molecules.

Front

What is the main difference between Active and Passive Transport?

Back

The main difference is that active transport requires energy to move substances against their concentration gradient, while passive transport does not.

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What is Endocytosis?

Back

Endocytosis is a form of active transport where cells engulf substances into a vesicle to bring them inside the cell.

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What is Exocytosis?

Back

Exocytosis is a process where cells expel materials in vesicles, releasing them outside the cell.

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 Simple Diffusion?

Back

Simple diffusion is the movement of small or nonpolar molecules across a membrane from an area of high concentration to an area of low concentration without energy.