Diffusion through a Membrane State Lab

Front

What is diffusion?

Back

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

Front

Can small particles pass through the cell membrane?

Back

Yes, small particles can pass through the cell membrane.

Front

What molecule did not diffuse through the membrane in the experiment?

Back

Starch did not diffuse through the membrane.

Front

Is glucose considered a small molecule?

Back

Yes, glucose is considered a small molecule.

Front

What happens to the starch indicator in the presence of a cell membrane?

Back

The starch indicator diffuses into the cell.

Front

What factors affect the rate of diffusion?

Back

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

Front

What is a concentration gradient?

Back

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

Front

What role does the cell membrane play in diffusion?

Back

The cell membrane acts as a barrier that selectively allows certain molecules to diffuse in and out of the cell.

Front

What is osmosis?

Back

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

Front

How does temperature affect diffusion?

Back

Higher temperatures increase the energy of molecules, leading to faster diffusion.