1. What is active transport? 2. How is active transport different from osmosis and diffusion?
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1) Active Transport is the movement of water molecules from the region of lower concentration to the region of higher concentration. This movement is against the concentration gradient. As the molecules are moving from less concentrated to the more concentrated region it acquires energy to move the molecules because the molecules are moving towards the MORE CROWDED region so ofcourse there will be resistance thus energy is provided in the form of ATP for this movement.

Osmosis The Movement of water molecules from the region of higher concentration to the region of lower concentration through the semi permeable membrane, without any use of ATP/

Diffusion The movement of molecules from the region of higher concentration to region of lower concentration

The Active Transport requires the ATP whereas the Diffusion and osmosis donot require it. Why dont osmosis and diffusion require the ATP?

In simpler words because The molecules are moving to the less crowded region so there will be no resistance so they will easily move to it.

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this would be a math