Chemical changes in the structure shown are most likely to happen during a) exposure to water. b) exposure to high humidity. c) exposure to mutagenic agents. d) exposure to high oxygen levels.

Where can a dna be found in a prokaryotic 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.

Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.