dinesh takes a quick call from his wife and then returns to a conversation with his coworker. his wife asked him to pick up six items at the grocery store on his way home from work, and while walking to his car, he realizes that he can remember only the first three items. this illustrates the

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.