◘HURRY PLEASE ◘ Is the membrane above permeable? How do you know?

No, because molecules are passing through it
Yes, because molecules are passing through it
Yes, because molecules are not passing through it
No, because molecules are not passing through it

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.