Bacteria Study Guide Growth in the microbiology world refers to what? The most common chemical element in cells is obligate aerobes obligate anaerobes microaerophiles Describe each of the following and give an example of where these type of bacteria may be found: Psychrophiles Mesophiles Thermophiles Hyperthermophiles Neutrophiles Obligate halophiles Barophiles Which of the two above are not harmful to humans in anyway? Describe the following shapes & arrangements of bacteria cocci bacilli spirilla streptococci staphylococci diplococci There are two main regions of the body where acidity is needed to control microbial growth. Name the region and what happens if acidity is reduced. Describe the four main stages of Binary Fission: 1) 2) 3) 4) These are reproductive cells that can make a clone of the original organism_____________________________. This reproductive method is when an outgrowth of the original cell receives genetic material and enlarges. What are endospores? How are archaebacteria structurally different than regular bacteria? What are some types of archaebacterial? What is autoclaving? What is pasteurization? Describe each of the stages of Bacterial Population Growth: Lag Log Stationary Death What is exponential growth? Describe the following and give an example of a product that it might be used on. Dessiccation Lyphilization Osmotic pressure Antiseptic Disinfection Sanitization Refrigeration Radiation Name some beneficial uses of bacteria to the human world. What are Biofilms & what is quorum sensing? What disease? Streptococcus pyogenes Bordetella pertussis Heliobacter pylori Clostridium botulinum Salmonella typhi Mycobacterium tuberculosis Yersinia pestis Staphylococcus aureus Bacillus anthracis Borrelia burgdorferi