Cell Transport & Organelles Flashcard

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 protein, without the use of energy.

Front

What are the two processes modeled by cellular activity across a cell membrane?

Back

Homeostasis and transport of molecules.

Front

What is the function of a lysosome?

Back

Lysosomes contain digestive enzymes that break down worn-out parts of the cell.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance from one location to another.

Front

What is Active Transport?

Back

Active Transport is the movement of molecules against a concentration gradient, requiring energy.

Front

What is Diffusion?

Back

Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration.

Front

What is Osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane.

Front

What role do proteins play in Facilitated Diffusion?

Back

Proteins act as channels or carriers that help specific molecules cross the cell membrane.

Front

What is the difference between Passive Transport and Active Transport?

Back

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

Front

What is the significance of Homeostasis in cells?

Back

Homeostasis is crucial for maintaining a stable internal environment in cells, allowing them to function optimally.