What are two ways in which bacteria can cause diseases

What are the two ways that bacteria cause disease? Some damage cells and tissues directly by breaking down the host's cells for food. Others release toxins that interfere with the host's normal activity.

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.