babypoptart babypoptart
  • 13-10-2020
  • Biology
contestada

What transport substances to where they need to go
in the cell

Respuesta :

nonspecificmoose12
nonspecificmoose12 nonspecificmoose12
  • 13-10-2020

Answer:

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion

Explanation:

Transport proteins generally perform two types of transport: “facilitated diffusion,” where a transport protein simply creates an opening for a substance to diffuse down its concentration gradient; and “active transport,” where the cell expends energy in order to move a substance against its concentration gradient

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