Blood consists of 3 types of cells, suspended in a liquid called plasma. These three types of cells, red blood cells (RBC), white blood (WBC) cells and platelets perform different functions throughout the body. RBC’s transport oxygen to cells and is doughnut shaped. WBC’s play major role in our immune system, and appears usually in spherical shape. Platelet are cell fragments and they help in blood clotting. This is a Scanning Electron Microscopic Image of Human RBC, WBC and Platelet.
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Escherichia coli (abbreviated as E. coli) are bacteria found in the environment, foods, and intestines of people and animals. It is a large and diverse group of bacteria. Although most strains of E. coli are harmless, others can make you sick. Some kinds of E. coli can cause diarrhea, while others cause urinary tract infections, respiratory illness and pneumonia, and other illnesses.