Active Life Movement

Simple diffusion, Facilitated diffusion, active transport, exocytosis, endocytosis?

Think of real-life movement between locations and make analogies of five different kinds of transportation that occurs through the cell membrane. Explain how each type of transport works in an analogy.

This is really hard but here goes:-

Simple diffusion = bike rolling down a hill (the concentration gradient)
Facilitated diffusion = car rolling down a hill in neutral (not requiring energy but still going with the gradient and faster than a bike)
Active diffusion = car (or whatever) driving up a hill (requiring energy and going against the gradient)

Exocytosis = aeroplane or ship out of the country
Endocytosis = aeroplane or ship into the country. Need to check in at the border.

The Active Life

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