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pls explain the ans …...................................................

pls explain the ans …...................................................

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Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
2 years ago
In facilitated diffusion, special proteins help move substances across membranes without the expenditure of ATP energy. While in the case of Active transport it uses energy to pump molecules against a concentration gradient.
In both cases, the transportation rate reaches a maximum when all of the protein transporters are being used (saturation).
So the correct option is 'One and three both'.

Please find the link below

https://www.askiitians.com/biology/transport-in-plants/

Regards

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