Understanding Osmosis & Diffusion

The video explains diffusion and osmosis, focusing on how molecules move from high to low concentration areas. It uses the example of red dye in water to illustrate diffusion and describes osmosis with glucose and water separated by a semi-permeable membrane. The role of cell membranes in allowing water and small molecules to passively diffuse while requiring energy for other substances is also covered.

How do cell membranes regulate the entry and exit of substances?

What role do active transport structures play in cellular processes?