Diffusion and Osmosis (2nd edition) - part 21 of 23. This film is a study of diffusion as it takes place in living cells. Photomicrography, time-lapse photography, simple lab demonstrations, and a dynamic model all help to explain diffusion, to clarify ho - 4K 影片檔

1970s: close up of lung tissue. Kidney tissue. Purification of blood in the kidneys. Waste products leaving blood. Time lapse of seeds growing in soil