Diffusion through a Membrane State Lab

Front

What is osmosis?

Back

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

Front

What is homeostasis?

Back

Homeostasis is the process through which an organism regulates its internal environment to maintain a stable and constant condition.

Front

What happens if the body cannot maintain its blood glucose level?

Back

Diseases, such as diabetes and hypoglycemia, result.

Front

Is diffusion a passive process?

Back

Yes, diffusion is a passive process that does not require energy.

Front

In which direction does oxygen move if there is more oxygen in the blood than in an organ?

Back

Oxygen moves out of the blood into the organ.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of greater concentration to an area of lower concentration.

Front

What factors affect the rate of diffusion?

Back

Factors include temperature, concentration gradient, and the size of the molecules.

Front

Define selectively permeable membrane.

Back

A selectively permeable membrane allows certain molecules to pass through while blocking others.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in concentration of a substance between two areas.

Front

What role do proteins play in membrane transport?

Back

Proteins facilitate the movement of larger or charged molecules across the cell membrane.