MICROBIOLOGY 2420 - EXAM 1A

CHOOSE THE MOST CORRECT ANSWER

  1. In addition to organisms that require a microscope to be seen, microbiology also includes the topics of
  1. immunology
  2. sterilization
  3. disinfection
  4. sewage treatment
  5. more than one of the above is correct
  1. In natural cycles (biogeochemical) microorganisms function to
  1. promote disease
  2. build up organic matter
  3. return essential elements to the soil
  4. fix carbon dioxide
  5. more than one of the above is correct
  1. Which of the following is not an area in which microorganisms play a significant role?
  1. health
  2. decay
  3. industrial processes
  4. plastic synthesis
  5. basic research
  1. The microscope was invented by
  1. Janssen
  2. Van Leeuwnhoek
  3. Redi
  4. Needham
  5. Schwann
  1. The first person to observe microorganisms was
  1. Janssen
  2. Van Leeuwnhoek
  3. Redi
  4. Needham
  5. Schwann
  1. The scientist (s) who sealed flasks of boiled media with sterile cotton in an attempt to disprove spontaneous generation was (were)
  1. Pasteur
  2. Schroder and von Dusch
  3. Neddham
  4. Spallazani
  5. Schwann
  1. Which of the following did not make a contribution to the germ theory of disease?
  1. Fracastoro
  2. Semmelweis
  3. Pasteur
  4. Koch
  5. Spallazani
  1. The rules which are still used today for demonstrating an organism that causes an infectious disease were developed by
  1. Pasteur
  2. Koch
  3. Semmelweis
  4. Spallazani
  5. Schroder and von Dush
  1. The first vaccination was performed by
  1. Pasteur
  2. Jenner
  3. Koch
  4. Semmelweis
  5. Lister
  1. The importance of phagocytic cells in body defense was demonstrated by
  1. Nuttal and Bordet
  2. Klebs and loeffler
  3. Metchnikoff
  4. Von Behring and Kitasato
  5. Iwanowsky
  1. The mosquito borne nature of yellow fever was demonstrate by
  1. Ronald Ross
  2. Paul Erlich
  3. John Enders
  4. Walter Reed
  5. Aaron Thielengerdes
  1. The first chemother apeutic agents against syphillis was discovered by
  1. Ronald Ross
  2. Paul Erlich
  3. Ronald Wernli
  4. Walter Reed
  5. John Enders
  1. Which of the following is true of both procaryotic and eucaryotic cells?
  1. Size is less than 5 microns
  2. A true nucleus is present
  3. Chromosome is circular
  4. Ribosomes are 70 s
  5. A plasma membrane is present
  1. The cell wall in procaryotes is composed primarily of
  1. cellulose
  2. hemicellulose
  3. chitin
  4. peptidoglycan
  5. none of the above
  1. The membrane invaginations found in procaryotes which function as surfaces for biochemical reactions are termed
  1. ribosomes
  2. mesosomes
  3. pili
  4. fimbriae
  5. none of the above
  1. In eucaryotic cells, the ____ functions as the site for energy production
  1. lysosome
  2. ribosome
  3. mitochondrion
  4. peroxisome
  5. golgi body
  1. The organelle which contains the enzyme catalase is the
  1. lysosome
  2. peroxisome
  3. ribosome
  4. chloroplast
  5. plasma membrane
  1. This organelle which functions as the site of protein synthesis is the
  1. lysosome
  2. peroxisome
  3. ribosome
  4. chloroplast
  5. plasma membrane
  1. Photosynthesis occurs in the
  1. chloroplast
  2. mitochondrion
  3. endoplasmic reticulum
  4. ribosome
  5. nucleus
  1. the flagellum or cilium of an eucaryotic cell is connected to the _____ which is located inside of the cell membrane
  1. nucleolus
  2. chromosome
  3. kinetosome
  4. peroxisome
  5. lysosome
  1. During binary fission in procaryotes, the duplicated chromosomes attach to
  1. spindle fibers
  2. the equatorial plate
  3. either side of a membrane invagination
  4. opposite poles of the mother cell
  5. none of the above
  1. The type of asexual reproduction in eucaryotes where by a number of daughter cells are formed simultaneously is
  1. syngamy
  2. budding
  3. binary fission
  4. schizogony
  5. more than one of the above is correct
  1. In sexual reproduction among microorganisms, the zygote results directly from
  1. formation of haploid cells
  2. meiosis
  3. fusion of haploid cells
  4. fusion of diploid cells
  5. mitosis
  1. The science of the systematic arrangement of organisms best defines
  1. classification
  2. nomenclature
  3. identification
  4. taxonomy
  5. none of the above
  1. Which of the following categories is the most inclusive?
  1. phylum
  2. class
  3. order
  4. genus
  5. species
  1. Which of the following would be the correct way to write a genus and species name?
  1. Proteus vulgaris
  2. Proteus vulgarisc
  3. Proteus vulgarisd
  4. proteus vulgaris
  5. none of the above
  1. Which of the following is a characteristic used to classify microorganisms?
  1. morphology
  2. cultural characteristics
  3. chemical composition
  4. genetics
  5. more than one of the above is correct
  1. The bacteria belong to the kingdom
  1. monera
  2. protista
  3. fungi
  4. plantae
  5. animalia
  1. Bergey’s manual is of significance because
  1. it includes all microorganisms
  2. it serves as a single source for the identification of all procaryotes
  3. it describes the metabolic tests for all protozoa
  4. it gives a complete description of all of the fungi
  5. more than one of the above is correct
  1. Gram positive bacteria
  1. are decolorized by alcohol
  2. appear pink
  3. retain the Gram stain (crystal violet) when treated with alcohol
  4. contain much less peptidoglycan in their cell walls than do Gram negative
  5. more than one of the above is correct
  1. Organisms which arranged in cubical packets of 8 organisms are termed
  1. diplococcus
  2. streptococcus
  3. sarcina
  4. staphylococcus
  5. none of the above
  1. Volume I of Bergey’s manual consists of the
  1. ordinary Gram negative bacteria
  2. ordinary Gram positive bacteria
  3. unusual bacteria
  4. Gram positive bacteria of complex morphology
  5. None of the above
  1. Possession of a peryplasmic flagellum is a distinguishing characteristic of the
  1. helical, motile bacteria
  2. spirochetes
  3. aerobic G-cocci
  4. facultatively anaerobic G- rods
  5. rickettsias
  1. The majority of the sewage transmitted pathogenic bacteria are found in the
  1. rickettsias
  2. anaerobic, G-, straight, curved, and helical rods
  3. facultatively anaerobic G- rods
  4. mycoplasms
  5. chlamydia
  1. The bacteria which cannot generate their own ATP belong to the group
  1. rickettsiales
  2. mycoplasmas
  3. chlamydiales
  4. spirochetes
  5. helical, motile bacteria
  1. The organisms which process myolic acid in their cell walls thereby making them acid-fast belong to the section
  1. rikkettsiales
  2. mycoplasmas
  3. chalamydiales
  4. spirochetes
  5. helical, motile bacteria
  1. The organisms which possess mycolic acid in their cell walls thereby making them acid-fast belong to the section
  1. Gram+cocci
  2. Endospore forming Gram+bacteria
  3. Mycobacterium
  4. Nocardioformes
  5. None of the above
  1. The group of organisms that is considered by many experts to be a sixth kingdom is the
  1. oxygenic photoropic bacteria
  2. nocardioformes
  3. archaebacteria
  4. mycobacteria
  5. Gram + endospore formers
  1. The different species of the genus Streptomycesare based upon
  1. their different morphologies
  2. their antigenic differences
  3. the type of antibiotic which each produces
  4. gram characteristics
  5. the wall composition
  1. The Mycetacea (fungi)
  1. are procaryotic
  2. contain chlorophyll
  3. obtain their nutrition of absorption or organic matter
  4. ingest organic matter
  5. more than one of the is the
  1. The mycelium is composed of
  1. spores
  2. hyphae
  3. thallus
  4. peptidoglycan
  5. none of the above
  1. The asexual spore of fungi which is formed by disjointing and transformation of hyphal cells is the
  1. sporangiospore
  2. conidiospore
  3. arthrospore
  4. chlamydspore
  5. endospore
  1. Asexual spores formed by budding in the fungi are termed
  1. conidiospore
  2. blastospores
  3. arthrospores
  4. chlamydospores
  5. sporangiospores
  1. During sexual reproduction in the fungi, fusion of the haploid nuclei is referred to as
  1. plasmogamy
  2. karyogamy
  3. meiosis
  4. zygosis
  5. mitosis
  1. Sexual spores that form inside of a sac are known as
  1. basidiospores
  2. zygospores
  3. basidiospores
  4. arthrospores
  5. blastospores
  1. The primitive aquatic fungi which produce flagellated cells belong to the phylum
  1. Gymnomycota
  2. Mastigomycota
  3. Amastigomycota
  4. Zygomycetes
  5. Basidiomycetes
  1. The class of fungi which contain forms in which no sexual phase has been discovered are the
  1. zygomyctes
  2. ascomycetes
  3. basidiomycetes
  4. deuteromycetes
  5. none of the above
  1. Fungi play significant roles I
  1. decomposition
  2. pathogenicity
  3. symbiotic associations
  4. industrial processes
  5. more than one of the above is correct
  1. The photosynthetic protists are important because
  1. they contain many pathogenic species
  2. they help maintain the temperature of the earth’s surface
  3. they are responsible for the majority of the oxygen in the atmosphere
  4. they produce large quantities of oil
  5. none of the above
  1. The phylum of protozoa that move by means of pseudopods are the
  1. mastigophora
  2. ciliophora
  3. sporozoa
  4. sarcodina
  5. more than one of the above is correct
  1. Giardia, Trypanosoma, and, Trichomonas, all belong to the phylum
  1. sarcodina
  2. mastigophora
  3. sporozoa
  4. ciliophora
  5. zygomycetes
  1. The phylum of protozoa which contains no known pathogens is the
  1. sarcodina
  2. mastigophora
  3. sporozoa
  4. ciliophora
  5. zygomycetes
  1. Viruses are not included in the five kingdoms of life because
  1. they are too small
  2. they contain either DNA or RNA, but not both
  3. they are obligate intracellular parasites
  4. they have no cellular organization
  5. more than one of the above is correct
  1. The nucleic acid of a virus may be
  1. single stranded
  2. double stranded
  3. RNA
  4. DNA
  5. More than one of the above is correct
  1. Viruses generally are ______ in shape
  1. round or square
  2. elipsoid
  3. helical or polyhedronal
  4. tear drop shaped
  5. cubical
  1. The nucleic acid core of the virus is surrounded by a (an)
  1. capsomere
  2. envelope
  3. capsid
  4. cell wall
  5. none of the above
  1. Following entry into a host cell, the nest step in viral replication is
  1. intracellular synthesis of virus components
  2. liberation of progeny viruses
  3. assembly of new virus particles
  4. synthesis of enzymes needed for replication of viral nucleic acids
  5. mitosis
  1. Which of the following would not be used for culturing viruses?
  1. a fertile egg
  2. a plant
  3. an animal
  4. a bacterial cell
  5. nutrient agar
  1. A virus classified as R2 would contain
  1. two kinds of nucleic acid
  2. two kinds of RNA
  3. double stranded RNA
  4. double stranded DNA
  5. single stranded RNA
  1. Which of the following is a method used for classifying viruses?
  1. disease caused
  2. tissue attacked
  3. mode of transmission
  4. nucleic acid content
  5. more than one of the above is correct
  1. The reproductive strategy followed by a virus that incorporates with the bacterial chromosome is known as
  1. slash and burn
  2. lysogeny
  3. rupture replication
  4. escape
  5. none of the above
  1. The lipoprotein coat found surrounding many animal viruses comes from
  1. viral synthesis
  2. virally converted bacteria
  3. the cell membrane of the previously infected animal cell
  4. mycoplasmas
  5. Gram-bacteria
  1. Yellow fever is caused by a (an)
  1. Picornavirus
  2. Rhinovirus
  3. Togavirus
  4. Myxovirus
  5. Retrovirus
  1. Chicken pox is the result of a (an)
  1. adenovirus
  2. herpes virus
  3. poxvirus
  4. hepadnavirus
  5. enterovirus
  1. Naked animal viruses infect a host cell by
  1. fusion of envelope with the cell membrane
  2. insertion by a phage
  3. phagocytosis by the host cell
  4. transduction
  5. circumduction
  1. Reverse transcriptase is found in
  1. DNA viruses
  2. Normal RNA viruses
  3. Retroviruses
  4. Haustoria
  5. None of the above
  1. The type of virus that cannot become a provirus is a (an)
  1. DNA virus
  2. Normal RNA virus
  3. Retrovirus
  4. Herpes virus
  5. Poxvirus
  1. The advantage that UV microscopy has over standard brightfield methods is
  1. the color rendition is superior
  2. a greater field of view
  3. UV light is easier on the eyes
  4. The resolving power is much greater
  5. More than one of the above is correct
  1. To observe as much detail as possible in a live protozoan you would probably use the_____ microscope
  1. brighfield
  2. darkfield
  3. phase contrast
  4. UV
  5. Electron
  1. High magnification of surface details of a cell could be best accomplished by using the
  1. darkfield microscope
  2. phase contrast microscope
  3. transmission electron microscope
  4. scanning electron microscope
  5. UV microscope
  1. The contractile filaments which are part of the cytoskeleton are known as the
  1. microfilaments
  2. microtubules
  3. intermediate filaments
  4. dense filaments
  5. elastic filaments
  1. The flagella arrangement in bacteria whereby two tufts of flagella are found at either end of the cell is termed
  1. lophotichous
  2. amphitrichous
  3. monotrichous
  4. peritrichous
  5. supertrichous

 

 

BIOLOGY 2420 -EXAM IB

CHOSE THE MOST CORRECT ANSWER

  1. Microbiology can be best defined as the science that deals with
  1. bacteria exclusively
  2. multicellular organisms
  3. organisms that require a microscope to be seen
  4. only the fungi
  5. protozoa and fungi only
  1. In which of the following areas do microorganisms play a major role?
  1. natural cycles
  2. industrial microbiology
  3. basic research
  4. genetic engineering
  5. more than one of the above is correct
  1. Which of the following scientists performed experiments that seemed to suggest the spontaneous generation of microorganisms?
  1. Redi
  2. Needham
  3. Spallazani
  4. Schwann
  5. Pasteur
  1. The doctrine of spontaneous generation was important to the growth of microbiology as a science because
  1. it demonstrated that microorganisms could be derived from nonliving matter
  2. it demonstrated that microorganisms could not be derived from nonliving matter
  3. it generated a great deal of study about microorganisms
  4. scientist were able to disprove it using microorganisms
  5. none of the above are correct
  1. The two cofounders of the germ theory of disease were
  1. Francastoro and Semmelweis
  2. Needham and Schwann
  3. Schroder and Von Dusch
  4. Pasteur and Koch
  5. Jenner and Lister
  1. The two first pure bacterial culture was obtained by
  1. Pasteur
  2. Koch
  3. Lister
  4. Jenner
  5. Metchnikoff
  1. The first man to isolate a virus was
  1. Erlich
  2. Iwanowsky
  3. Reed
  4. Enders
  5. Ross
  1. The man that demonstrated that malaria was contracted by the bite of a mosquito was
  1. Ross
  2. Reed
  3. Erlich
  4. Enders
  5. Pasteurs
  1. Koch’s postulates did not include
  1. specific organism must always be found with the disease
  2. the disease organism must be isolated and grown in pure culture
  3. the pure culture must induce the disease in a fresh animal
  4. the organism must be recovered from the infected animal
  5. the organism must always be a bacterium
  1. The first chemotherapeutic agent against syphilis was discovered by
  1. Erlich
  2. Nuttal and Brodet
  3. Reed
  4. Pasteur
  5. Loeffler
  1. Procaryotic cells contain all of the following features except for
  1. peptidoblycan in the cell wall
  2. mesosomes
  3. gas vacuoles
  4. a single circular chromosome
  5. 80s ribosomes
  1. A viscous coating found outside of the cell wall in certain procaryotic cells best describes a (an)
  1. flagellum
  2. capsule
  3. periplasmic space
  4. plasma membrane
  5. none of the above
  1. Invaginations of the cell membrane found in most procaryotes are known as
  1. capsules
  2. flagella
  3. mesosomes
  4. endoplasmic reticula
  5. periplasmic spaces
  1. The cell wall functions primarily to
  1. protect against osmotic shock
  2. serve as a surface for reactions to occur on
  3. inactivate hydrogen peroxide
  4. absorb materials from the environment
  5. more than one of the above is correct
  1. This organelle functions to regulate the entry and exit of materials to and from the cell. It is the
  1. cell wall
  2. cell membrane
  3. endoplasmic reticulum
  4. nucleus
  5. golgi body
  1. These organelles serve as the sites of protein synthesis
  1. nucleus
  2. ribosomes
  3. golgi body
  4. endoplasmic reticulum
  5. flagellum
  1. In binary fission as occurs is procaryotes, the duplicated chromosomes attach themselves to
  1. spindle fibers
  2. centromeres
  3. invaginations of the plasma membrane
  4. cell walls
  5. none of the above
  1. The term schizogony best describes
  1. binary fission
  2. multiple fission
  3. budding
  4. sexual reproduction
  5. conjugation
  1. The process of syngamy involves
  1. the fusion of two haploid cells
  2. the fusion to diploid cells
  3. conjugation
  4. binary fission
  5. none of the above
  1. The science of the systematic arrangement of organisms into groups or categories is known as
  1. classification
  2. nomenclature
  3. identification
  4. taxonomy
  5. none of the above
  1. A phylum or division best describes a group of related
  1. classes
  2. orders
  3. families
  4. genera
  5. species
  1. Which of the following would be the correct way to write a generic name?
  1. homo sapiens
  2. HOMO SAPIENS
  3. HOMO sapiens
  4. Homo sapiens
  5. homo Sapiens
  1. Which of the following characteristics could be used in the classification of microorganisms?
  1. morphology
  2. cultural characteristics
  3. metabolic characteristics
  4. chemical composition
  5. more than one of the above is correct
  1. The basis for the 5 kingdoms of life is
  1. cellular organization
  2. nutritional requirements
  3. cellular organization and nutritional requirements
  4. cellular organization and cells size
  5. cellular organization and motility
  1. The kingdom that consists exclusively of procaryotic organisms is the
  1. protista
  2. monera
  3. plants
  4. animals
  5. fungi
  1. Gram positive bacteria, when compared to Gram negative bacteria
  1. have a more complex chemical structure
  2. contain more peptidoglycan in their in their walls
  3. contain less peptidoglycan in their walls
  4. are smaller
  5. more than one of the above is correct
  1. A bacterium that is seen to consist of chains of spheres would be termed a
  1. staphylococcus
  2. sarcina
  3. diplococcus
  4. streptococcus
  5. bacillus
  1. Volume I of Bergey’s Manual of Systematic Bacteria includes
  1. ordinary gram positive organisms
  2. ordinary gram negative organism
  3. unusual bacteria
  4. filamentous bacteria of complex morphology
  5. fungi
  1. The spirochetes are characterized by
  1. rigid cell walls
  2. possession of a periplasmic flagellum
  3. ease of culture in laboratory media
  4. rod shape
  5. more than one of the above is correct
  1. Organisms which are straight or curved gram negative rods and which can grow either aerobically or anaerobically belong to the section
  1. anaerobic, G-, straight curved, and helical rods
  2. rickettsias and chlamydias
  3. mycoplasmas
  4. facultatively anaerobic G-rods
  5. spirochetes
  1. Which of the following is not a characteristic of the rickettsias?
  1. they generate their own energy
  2. they are minute, obligate intracellular parasites
  3. they are associated with the blood vascular system in humans
  4. they have a complex development cycle
  5. they grow on non-living medium
  1. The chlamydiales
  1. can grow on artificial media
  2. cannot produce energy (ATP)
  3. are spread mainly by ticks and lice
  4. do not posses a cell wall
  5. none of the above
  1. The mycopasma are unique among bacteria in that they
  1. are not affected by penicillin
  2. are gram negative parasites
  3. do not possess a cell wall
  4. do not possess a cell membrane
  5. do not contain genetic material
  1. The endospore forming bacteria are found in
  1. Volume I
  2. Volume II
  3. Volume III
  4. Volume IV
  5. More than one of the above is correct
  1. The section in Volume II which contains bacteria that produce a fungal growth pattern is the
  1. Gram positive cocci
  2. Mycobacteria
  3. Nocardioforms
  4. Nonspore forming gram positive rods
  5. None of the above
  1. The evidence that the archaebacteria represents a second procaryotic kingdom includes all of the following except
  1. absence of peptidoglycan
  2. chemically different lipids in the cell membranes
  3. difference sequences of nucleotides in the ribosomal RNA
  4. unique enzymes and coenzymes
  5. absence of DNA as the genetic material
  1. Volume IV contains organisms of medical significance because
  1. most of them are highly pathogenic
  2. they resemble microscopic fungi
  3. many of them produce antibiotics
  4. the genus streptomyces contains more species than any other bacterial genus
  5. none of the above are correct
  1. The vegetative body of a mould is termed a (an)
  1. hypha
  2. mycelium
  3. ancospore
  4. haustoria
  5. sporophore
  1. The single celled form of a fungus is termed a (an)
  1. yeast
  2. mycelium
  3. ancospore
  4. mould
  5. none of the above
  1. A non-motile sporangiospore is termed a (an)
  1. zoospore
  2. aplanospore
  3. arthrospore
  4. chlamydospore
  5. conidioospore
  1. Fungi reproduce asexually by
  1. budding
  2. fragmentation
  3. spores
  4. conidia
  5. more than one of the above is correct
  1. The spores that are formed naked on the tips of modified hyphae are known as
  1. zoospores
  2. arthrospores
  3. conidia
  4. chlamydospores
  5. blastospores
  1. During sexual reproduction in the fungi, the sequence of events is
  1. Plasmogamy, meiosis, karyogamy
  2. Karyogamy, meiosis, plasmogamy
  3. Karyogamy, plasmogamy, meiosis
  4. Meiosis, plasmogamy, karyogamy
  5. Plasmogamy, karyogamy, meiosis
  1. Which of the following is not a sexually produced spore in the fungi?
  1. zygospore
  2. basidiospore
  3. ascospore
  4. blastospore
  5. all are sexually produced spores
  1. The division Gymnomycota of the fungi includes the
  1. aquatic fungi
  2. terrestrial fungi without flagella
  3. slime moulds
  4. sac fungi
  5. mushrooms
  1. The primitive aquatic fungi are found in the division
  1. Gymnomycota
  2. Mastigomycota
  3. Amastigomycota
  4. Zygomycetes
  5. Ascomycetes
  1. The asexual spores of the Ascomycetes are
  1. ascospores
  2. sporangiospores
  3. basidiospores
  4. conidia
  5. aplanospores
  1. The toad stools, mushrooms, bracket fungi, smuts, and jelly fungi are found in the class
  1. zygomycetes
  2. ascomycetes
  3. basidiomycetes
  4. deuteromycetes
  5. mastigomycota
  1. In which of the following do the fungi play a significant role?
  1. decomposition
  2. symbiotic associations
  3. industrial production
  4. disease
  5. more than one of the above is correct
  1. The phylum of protozoa that move by means of flagella are the
  1. ciliophora
  2. mastigophora
  3. sarcodina
  4. sporozoa
  5. deuteromycetes
  1. The phylum of protozoa that are completely parasitic are the
  1. ciliophora
  2. mastigophora
  3. sarcodina
  4. sporozoa
  5. deuteromycetes
  1. The protozoa are important because they
  1. are important links in the food chain
  2. maintain ecology of the wetlands
  3. degrade sewage
  4. cause disease
  5. more than one of the above is correct
  1. Viruses are not considered to belong to any of the 5 kingdoms of life because
  1. they are very small
  2. they cannot generate their own energy
  3. they are acellular
  4. none can produce outside of other cells
  5. more than one of the above is correct
  1. Viruses
  1. may contain DNA or RNA, but not both
  2. may contain either single or double stranded nucleic acids
  3. lack all machinery for energy production and protein synthesis
  4. are all obligate intracellular parasites
  5. more than one of the above is correct
  1. The two major morphologies found among the viruses are
  1. Cylindrical and spherical
  2. Helical and polyhedron
  3. Cubic and spherical
  4. Linear and cubic
  5. None of the above is correct
  1. The coat that surrounds the nucleic acid of a virus is the
  1. capsomere
  2. capsid
  3. virion
  4. phage
  5. envelope
  1. The third phase of viral replication is
  1. liberation of progeny virus
  2. infection and adsorption
  3. synthesis or replicative enzymes
  4. intracellular synthesis of virus components
  5. assembly of new virus particles
  1. Which of the following methods would not be suitable for the cultivation of viruses?
  1. fertile eggs
  2. tissue culture of human cells
  3. tissue culture of animal cells
  4. experimental plants
  5. non-living microbiological media
  1. A virus classified as a D2 type would contain
  1. single stranded DNA
  2. double stranded DNA
  3. single stranded RNA
  4. double stranded RNA
  5. none of the above
  1. The incorporation of the viral nucleic acid into the host cell chromosome and its subsequent replication along with the host cell is termed
  1. lysis
  2. lysogeny
  3. viral conversion
  4. cryptoreplication
  5. none of the above
  1. When a bacterial cell contains a provirus it frequently
  1. expresses new traits such as toxin production
  2. is destroyed
  3. becomes weakened
  4. fails to divide
  5. divides uncontrollably
  1. The lipoprotein coat which surrounds many animal viruses is derived from
  1. special viral genes
  2. the previous host cell
  3. special genes within the animal cell which it infected
  4. materials derived from the external environment
  5. none of the above
  1. Chicken pox and fever blisters are caused by the
  1. pox virus
  2. hepadnavirus
  3. herpes virus
  4. adenovirus
  5. rhinoviruses
  1. Which of the following is an RNA virus
  1. pox virus
  2. hepadavirus
  3. herpes virus
  4. adenovirus
  5. rhinoviruses
  1. The viruses which contain reverse transcriptase are the
  1. togaviruses
  2. rhabdovirus
  3. rotavirus
  4. retroviruses
  5. myxoviruses
  1. Rabies is caused by the
  1. togavirus
  2. myxovirus
  3. rotavirus
  4. rhabdovirus
  5. retrovirus
  1. Naked animal viruses are adsorbed into the host cell by
  1. phagocytosis
  2. fusion of their envelope with the host cell membrane
  3. penetration enzymes
  4. pinocytosis
  5. more than one of the above is correct
  1. Which of the following viruses cannot become a provirus
  1. DNA virus
  2. Normal RNA virus
  3. Retrovirus
  4. Sll can become a provirus
  1. In the retroviruses, replication involves
  1. copying of the viral DNA directly into new DNA
  2. copying of the viral RNA directly into new RNA
  3. copying of the viral RNA into DNA
  4. copying of the viral DNA into RNA
  5. none of the above
  1. In order to observe as much detail as possible in living, unstained organisms, you would probably utilize a
  1. brightfield microscope
  2. darkfield microscope
  3. phase contrast microscope
  4. TEM
  5. SEM
  1. To observe highly detailed images of surfaces structures on microorganisms, you would utilize the
  1. brightfield microscope
  2. darkfield microscope
  3. phase contrast microscope
  4. TEM
  5. SEM
  1. A bacterium that exhibited amphitrichous flagellation would have
  1. a single flagellum
  2. tufts of flagella at both ends of the cell
  3. flagella over the entire surface
  4. two or more flagella at one pole
  5. a row of flagella around the midline of the cell
  1. That component of the cytoskeleton that is involved in movement is the
  1. microfilament
  2. microtubule
  3. endoplasmic reticulum
  4. Golgi body
  5. Ribosome
  1. Which of the following is a larval stage of the trematodes?
  1. miracidia
  2. redia
  3. cercaria
  4. metacercaria
  5. more than one of the above is correct
  1. The helminths are
  1. procaryotes
  2. protozoa
  3. fungi
  4. invertabrate animals
  5. protista