williamukefletc williamukefletc

12-10-2017
Biology

contestada

Which mechanism requires energy?
A. Exocytosis
B. Osmosis
C. Diffusion of oxygen into a red blood cell.
D. Diffusion of ions through a potassium channel

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Erudite1 Erudite1

26-10-2017

The correct option is A.
Exocytosis is a type of vesicle transport which cells use to move substances out of their interior. It is an active process because it requires the energy of ATP to occur. The process of exocytosis move substances from the cell cytoplasm to the cell membrane.

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