Cellular Transport

Front

What characteristic of the cell membrane allows only certain material to pass through?

Back

Selective permeability is the property of the cell membrane that allows it to control what substances can enter or leave the cell.

Front

Moving from areas of LOW concentration to areas of HIGH concentration is called?

Back

Active Transport is the process that moves substances against their concentration gradient, requiring energy.

Front

What is the process called when cells take in materials by engulfing them?

Back

Endocytosis is the process by which cells internalize substances by engulfing them in a membrane.

Front

What is the process called when cells expel materials?

Back

Exocytosis is the process by which cells expel materials by vesicles fusing with the cell membrane.

Front

What is the diffusion of water through a selectively permeable membrane?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the term for the movement of molecules from an area of high concentration to an area of low concentration?

Back

Diffusion is the process where molecules spread from areas of high concentration to areas of low concentration until equilibrium is reached.

Front

What type of transport does not require energy?

Back

Passive Transport is the movement of substances across a cell membrane without the use of energy.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.

Front

What is the role of transport proteins in cellular transport?

Back

Transport proteins assist in the movement of substances across the cell membrane, either by facilitating passive transport or active transport.

Front

What is homeostasis in the context of cellular transport?

Back

Homeostasis is the process by which cells maintain a stable internal environment despite changes in external conditions.