A cell is placed in a solution and the cell quickly shrinks. Based on this information, which explanation below best describes what caused the cell to shrink? A. The concentration of water was higher inside the cell than outside.

B. The concentration was constant because the cell is not permeable to the particles.

C. The concentration of water was lower inside the cell than outside.

D. The concentration of water was the same inside and outside the cell.

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.