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- Microbiology Why do obligate aerobes need oxygen? (In other words why is oxygen so important to obligate aerobes)?In experimental microbiology classification of bacteria is very important. Why is essential to classifying system for microbes ? How would you classify Escherichia coli?Most bacteria require a water activity of 0.9 or higher to grow. A prolonged period of being dry usually causes loss of viability. How were there still living bacteria in many of the dried foods such as dried rice, dehydrated coconut flakes, raisins, etc.? Discuss.
- - Mycoplasma MICROBIO-VIROLOGY advanced have gram positive cell walls are cells with prokaryotic organization are bacteria typically found in contaminated soils. can have intracellular replication. cause skin infections. - Which of the following amino acids has a hydrophobic side chain? BIOCHEMISTRY basic Methionine Glutamine Lysine Serine Glutamic acid - Which of the following is true regarding viruses? MICROBIO-VIROLOGY basic Released viral particles during cell lysis or budding arecalled virions. Viruses have a protein capsid and an envelope. Viruses are obligate intracellular parasites. Virus genome can be DNA, RNA, single or double stranded. Outside the host, viruses are inactivated within 24 hours. - On the respiratory system what are the correct statements? PHYSIOLOGY basic Partial pressure of carbon dioxide (pCO2) is higher in alveoli than in atmospheric air. Surfactant reduces surface tension within the alveoli Elastic recoil of the lungs…Why is biofilm development in catheters (tubes that can be inserted into a body cavity, duct or vessel which allow drainage or injection of fluids) such a dangerous source of infection in hospitals?Some bacteria possess antibiotic resistance, as well as the ability to survive through adverse conditions. Where in this type of bacteria is the DNA located? fimbriae, nucleoid, and endospore plasmids, nucleoid, and endospore nucleoid, fimbriae, and plasmids endospore, fimbriae, and plasmids
- Bacteria of the genus Mycoplasma are distinguished from other bacterial cells by 1) cell walls composed solely of amino acids. O 2) the absence of a cytoplasmic membrane. O 3) the absence of a cell wall. O 4) Have large capsules. 5) the presence of mycolic acid in their cell walls.Difference between Capsule and Microcapsule in bacteria.what practical significance are capsule forming bacteria in industry and medicine?
- What is meant by the term “staphylococcus”? Bacteria that are round and arranged in clusters Bacteria that are round and arranged in chains Special bacteria that are spiral-shaped Bacteria that are rod-shaped and found in groupsWhy is the term prokaryote considered an inadequate descriptor by some microbiologists?Why are endospores particularly promlematic in the food industry? State two protocols the food industry has adapted to reduce endospore-forming bacteria in food prodcuts, such as chilled packaged foods, canned foods, and pasteurized milk.