DNA Mutation Simulation Click on the edit DNA, you will now see the original sequence used to make the protein.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )

to this answer it would be edge enhancement