Test Microbiology Question and Question and Answer

Test Microbiology Question and Question and Answer asexual reproduction in which the parent cell divides in two binary fission the ability of a virus to cause disease virulence an organism or substance that causes disease pathogen sexual reproduction in some protozoans conjugation the breakdown of complex molecules into simpler ones fermentation a mutually positive arrangement between species symbiosis able to move independently motile a plant or animal that supports a parasite host asexual reproduction of yeast by pinching-off budding self-regulating process to maintain water level homeostasis the rupturing of a cell lysis Members of the kingdom Eubacteria are eukaryotes. False One reason fungi are no longer classified as plants is the presence of chitin in their cell walls. True A virus is a prokaryote. False A halophile is responsible for spoiling juices. False Viruses are capable of replication outside the host cell. False Algin is a useful substance derived from brown algae. True a dinoflagellate responsible for red tide off the Florida coast Karenia brevis a fungi known for the production of an antibiotic Penicillium chrysogenum a protozoan known to cause malaria Plasmodium vivax the water mold that causes late blight in potatoes Phytophthera infestans the bacteria responsible for Lyme Disease Borrelia burgdorferi common mushrooms found in grocery stores Agaricus bisporis The microorganisms commonly found living on the human skin are known as . normal flora The tiny exoskeleton of a diatom is mostly composed of . silicon Methanogens are able to live in an environment. anaerobic The members of the kingdom Archaea that live in the Dead Sea are known as . halophiles Multicellular fungi are composed of thread-like structures called , which group together to form mycelia to perform specific functions. hyphae A pathogenic RNA molecule is called a . viroid A bacteria culture that has a high concentration of in the cell wall will stain Gram-positive. peptidoglycan List the five steps of a lytic viral replication cycle in order. Attachment, Penetration, Uncoating, Replication, Release Bacteria share genetic material through the processes of bacterial conjugation, transduction and . transformation Peptidoglycan is the material found in the bacterial that forms a molecular basis of the Gram stain. cell wall A virion is able to recognize the correct host cell when the receptor site of the virion and the viral attachment of the host cell match up. protein A host cell releases viruses that typically have a lipid covering called an envelope through the process of viral budding Examples of obligate intracellular parasites that can only replicate inside a host cell are: rickettsia and viruses