Final Matching Questions.docx - For questions 6-14 select...

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For questions 6-14 select one of the four groups of microorganisms below to correctly complete each of the statements below Include the agents responsible for stomach ulcers and plague – Bacteria Are prokaryotes – Bacteria Impart distinctive flavors in foods such as yogurt and cheese – Bacteria Are obligate intracellular parasites – Viruses Have a protein coat that surrounds the genetic information – Viruses Include molds and yeasts – Fungi Contain the protozoa and algae – Protists Derive their energy from degrading organic materials – Fungi Are the most metabolically diverse group – Bacteria For questions 15-20, match each term below with its description Normal microbiota – Beneficial microbial inhabitants of the body Golden age of microbiology – Rapid discovery of basic microbiology principles Re-emerging diseases – Once controlled by preventative public health measures, they are now on the rise Prions – Resistant to the usually sterilization procedures for pathogens Spontaneous generation – The converse of biogenesis Acellular infectious agent – Chemical composition includes RNA or DNA For the next nine questions select one of the following three structures to correctly complete each statement below Permit eukaryotic motility – Flagella Are involved in group translocation – Plasma membranes Contain components of the electron transport chain for ATP generation – Plasma membranes May have peritrichous or polar arrangements – Flagella Are linear rods contained within a nucleus – Chromosomes Replication is followed by binary fission – Chromosomes Are closed circular single molecules – Chromosomes Are used for chemotaxis – Flagella Involved with signal sequences in secretion – Plasma membranes For questions 15-20 match each bacterial structure with its correct function Nucleoid – Stores essential genetic information Glycocalyx – Prevents phagocytosis; attachment Plasmid – Contains a few genes; not essential for cell Metachromatic granules – Site of nutrient accumulation in cell Fimbriae – Short straight hair-like fibers Gram (-) cell wall – Rigid outer boundary
For questions 10-20 match each type of organism with its correct growth environment (an environment may be used more than once) Mesophile – This group has most of the pathogens as they grow at body temperature Halophile – Would grow on selective media containing relatively high levels of salt Alkaliphile – They can tolerate a pH above 8.5 Psychrophile – They are able to live at the bottom of the ocean Anaerobe – They do not or cannot use oxygen Hyperthermophile – These have been found in seawater from hot water volcanic vents Microaerophile – They survive in environments where O2 concentration is relatively low but are inhibited by high O2 levels Obligate aerobe – This group requires oxygen for metabolism, just like humans Acidophile – Can be found growing in the human stomach Facultative anaerobe –

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