Why are graphs useful when interpreting data? they make trends in the data easier to see. they are easier to create than data tables. they take the place of pictures in a report. they can be used to show additional data.

They make trends in the data easier to see.

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.