Cell Transport Review

Front

What is Facilitated Diffusion?

Back

Facilitated Diffusion is the process by which molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein.

Front

What is Homeostasis?

Back

Homeostasis is the maintenance of a relatively stable internal environment in an organism, often incorporating feedback regulation.

Front

What types of cells have a cell membrane?

Back

Both Eukaryotic and Prokaryotic cells have a cell membrane.

Front

What is Active Transport?

Back

Active Transport is the movement of substances across a cell membrane that requires energy, moving materials from low to high concentration.

Front

What is the function of the plasma membrane?

Back

The function of the plasma membrane is to regulate what enters and leaves the cell.

Front

Define Diffusion.

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration without the need for energy.

Front

What is Osmosis?

Back

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

Front

What is a Carrier Protein?

Back

A Carrier Protein is a type of protein that transports specific substances across a cell membrane by changing shape.

Front

What is the difference between Passive and Active Transport?

Back

Passive Transport does not require energy and moves substances down the concentration gradient, while Active Transport requires energy and moves substances against the concentration gradient.

Front

What role do feedback mechanisms play in Homeostasis?

Back

Feedback mechanisms help maintain Homeostasis by detecting changes in the internal environment and initiating responses to restore balance.