Track 7: Bacterial Morphology & Metabolism
acteria are microscopic, single-cell organisms that live almost everywhere. Bacteria live in every climate and location on earth. Some are airborne while others live in water or soil. Bacteria live on and inside plants, animals, and people. Bacterial ecology is defined as the interaction between bacteria and with their environment. Bacteria play a vital role in the biosphere and certain key processes, such as, the production and oxidation of methane, soil formation, conversion of rock to soil etc. Major researches in bacteriology over the past years resulted in the development of many useful vaccines. Bacterial cells are about 2 µm (micrometers) long and 0.5 µm in diameter. Bacteria exist in different shapes like rod-shaped (bacilli), spherical (cocci), or helical (spirillum). Bacteria are lack membrane bound organelles, contains single loop DNA, it generally undergoes conjugation. There are techniques like staining to differentiate Gram positive and Gram-negative bacteria. Compared to virus, cost for antibiotics is low still 700 million infections were found every year.