Questions And Answers
/. Microorganisms that do not have a nucleus in their cells - Answer-Prokaryotes
/.Disease causing microorganisms - Answer-Pathogens
/.Microorganisms composed only of heredity material wrapped in a protein covering -
Answer-Viruses
/.Orderly arrangement of organisms into a hierarchy of taxonomic categories - Answer-
Classification
/.When assigning a scientific name to an organism, both the genus and species names
are ______ or ______. - Answer-Italicized or underlined
/.The five I's of studying microorganisms are? - Answer-Inoculation, incubation,
inspection, isolation, and identification
/.Contains only one species of microorganisms - Answer-Pure culture
/.An important component of media because it provides a solid surface for bacterial
growth - Answer-Agar
/.Magnifies the specimen to produce the real image of the specimen - Answer-Objective
lens
/.How is total magnification determined? - Answer-The power of the ocular lens is
multiplied by the power of the objective lens
/.Two functions of bacterial appendages - Answer-Attachment and motility
/.The presence of flagella all over the cell surface - Answer-Peritrichous
/.Prokaryotic flagella has three parts in the order from cytoplasm to external
environment is? - Answer-Basal body, hook and filament
/.Often the site of pathogenic genes - Answer-Plasmids
/.A unique macromolecule found in bacterial cell walls - Answer-Peptidoglycan
/.-DNA not encased in a membrane
- has a cell wall made of peptidoglycans or other distinct chemicals
, - does not have membrane-bound organelles
- DNA is wrapped around histones - Answer-Prokaryotes
/.Short, numerous appendages used by some bacterial cells for adhering to surfaces -
Answer-Fimbriae
/.The most immediate result of destruction of a cell's ribosomes would be that? -
Answer-Protein synthesis would stop
/.Host cells of viruses include? - Answer-Humans, other animals, plants, fungi, and
bacterial
/.The core of every virus particle always contains? - Answer-Either DNA or RNA but not
both
/.Where does DNA viruses multiply? - Answer-Host cell's bucleus
/.Where does RNA viruses multiply? - Answer-Host cell's cytoplasm
/.Viruses attach to their hosts by way of the host's? - Answer-Glycoproteins
/.Infect Escherichia coli cells? - Answer-T-even bacteriophages
/.Primary purpose of viral cultivation is to? - Answer-- isolate and identify viruses I.
Clinical specimens
- prepare viruses form vaccines
- do detailed research on viral structure, lifestyle, genetics, and effects on host cells
/.Retroviruses differ from other viruses in that they? - Answer-Consist of RNA that
changes to a DNA
/.Required for bacteria because it stabilizes the cell wall - Answer-Calcium
/.Organisms that feed on dead organisms for nutrients - Answer-Saprobes
/.The use of energy by a cell to enclose a substance in its membrane by forming s
vacuole and engulfing the substance - Answer-Endocytosis
/.When microbes are in a close nutritional relationship and one benefits but the other is
not harmed - Answer-Commensalism
/.The chemical reactions and physical working of the cell - Answer-Metabolism
/.What happens during aerobic cellular respiration? - Answer-The final electron acceptor
is oxygen