Microbiology: An Introduction, 11th Edition Test Bank

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ExamName___________________________________MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.1)Which of the following is NOT associated with viruses?1)A)capsidB)envelopeC)spikesD)organellesE)nucleic acidAnswer:DExplanation:A)B)C)D)E)2)Microorganisms are involved in each of the following processes EXCEPT2)A)decomposition of organic material.B)infection.C)food production.D)smog production.E)O2production.Answer:DExplanation:A)B)C)D)E)3)Gene therapy is currently used to treat all of the following diseases EXCEPT3)A)cystic fibrosis.B)severe combined immunodeficiency disease (SCID).C)colon cancer.D)Duchenne’s muscular dystrophy.E)LDL-receptor deficiency.Answer:CExplanation:A)B)C)D)E)1

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Figure 1.14)The bacterial shape of the cells in Figure 1.1 would best be described as4)A)coccus.B)bacillus.C)ovoid.D)columnar.E)spiral.Answer:BExplanation:A)B)C)D)E)5)The infectious agent that causes AIDS is a5)A)bacterium.B)mold.C)virus.D)protozoan.E)yeast.Answer:CExplanation:A)B)C)D)E)6)In which of the following situations would Koch’s postulates be utilized?6)A)determination of the cause of cancer in a patientB)formulation of a vaccine against a new pathogen in a genetic engineering labC)whenever the scientific method is used to investigate a microbiological problemD)determination of the cause of a patient’s illness in a hospital microbiology labE)development of a new antibiotic in a pharmaceutical labAnswer:DExplanation:A)B)C)D)E)2

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7)The major food producers for other living organisms is/are7)A)higher plants.B)cyanobacteria.C)algae.D)higher plants and algae.E)higher plants, cyanobacteria, and algae.Answer:EExplanation:A)B)C)D)E)8)Recombinant DNA refers to the8)A)interaction between human and bacterial cells.B)DNA resulting when bacterial genes are inserted in an animal genome.C)study of bacterial ribosomes.D)synthesis of proteins from genes.E)study of the function of genes.Answer:BExplanation:A)B)C)D)E)9)Viruses are not considered living organisms because they9)A)are structurally very simple.B)typically associated with disease.C)cannot reproduce by themselves.D)can only be visualized using an electron microscope.E)are ubiquitous in nature.Answer:CExplanation:A)B)C)D)E)10)The use of phenol (carbolic acid) as a wound disinfectant was first practiced by10)A)Lister.B)Semmelweis.C)Koch.D)Holmes.E)Pasteur.Answer:AExplanation:A)B)C)D)E)3

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11)The formal system for classifying and naming organisms was developed by11)A)Carolus Linnaeus.B)Robert Koch.C)Aristotle.D)Louis Pasteur.E)Ignaz Semmelweis.Answer:AExplanation:A)B)C)D)E)12)Microorganisms are essential to our life. Each of the following is an example of a beneficial functionof microorganisms EXCEPT12)A)agriculture.B)increased morbidity.C)bioremediation.D)alternative fuel production.E)gene therapy.Answer:BExplanation:A)B)C)D)E)13)Antibiotics are produced by13)A)bacteria.B)viruses.C)fungi.D)protozoa.E)bacteria and fungi.Answer:EExplanation:A)B)C)D)E)14)The first antibiotic to be utilized was14)A)salvarsan.B)quinine.C)sulfonamides.D)penicillin.E)vancomycin.Answer:DExplanation:A)B)C)D)E)4

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15)Molecular biology is the study of15)A)RNA replication.B)DNA synthesis.C)enzyme function.D)the structure and function of macromolecules essential to life.E)protein synthesis.Answer:DExplanation:A)B)C)D)E)16)Protozoan motility structures include16)A)cilia.B)pseudopods.C)flagella.D)cilia and pseudopods only.E)cilia, flagella, and pseudopods.Answer:EExplanation:A)B)C)D)E)17)Biogenesis refers to the17)A)spontaneous generation of organisms from nonliving matter.B)development of life forms from preexisting life forms.C)germ theory of disease.D)development of aseptic technique.Answer:BExplanation:A)B)C)D)18)Fungal infections are studied by18)A)virologists.B)parasitologists.C)mycologists.D)herpetologists.E)bacteriologists.Answer:CExplanation:A)B)C)D)E)5

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19)Which of the following is NOT a domain in the three-domain system?19)A)bacteriaB)archaeaC)eukaryaD)animaliaAnswer:DExplanation:A)B)C)D)20)Mycology is the study of20)A)protozoa.B)mycoplasma.C)mushrooms.D)molds.E)molds, yeast, and mushrooms.Answer:EExplanation:A)B)C)D)E)21)Which of the following statements about biofilms is FALSE?21)A)Biofilms in your body protect mucous membranes from harmful microbes.B)Biofilms on rocks provide food for animal life.C)Biofilms in pipes can block the flow of water.D)Compared to free-living bacteria, biofilms are more sensitive to antibiotics.E)Biofilms on medical devices cause infections.Answer:DExplanation:A)B)C)D)E)22)Common commercial benefits of microorganisms include synthesis of22)A)insulin.B)aspirin.C)antibiotics.D)antibiotics and aspirin.E)antibiotics and insulin.Answer:EExplanation:A)B)C)D)E)6

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23)The term used to describe a disease-causing microorganism is23)A)microbe.B)infection.C)virus.D)bacterium.E)pathogen.Answer:EExplanation:A)B)C)D)E)24)Archaea differ from bacteria in that archaea24)A)lack nuclei.B)use organic compounds for food.C)have diverse cell wall compositions.D)are prokaryotic.E)reproduce by binary fission.Answer:CExplanation:A)B)C)D)E)25)Which of the following findings was essential for Edward Jenner’s vaccination process?25)A)A weakened microorganism will not cause disease.B)Pathogenic microorganisms infect all humans and animals in the same manner.C)Someone who recovers from a disease will not acquire that disease again.D)Exposure to a milder disease form may produce immunity.E)Disease is caused by viruses.Answer:DExplanation:A)B)C)D)E)26)Development of emerging infectious disease can be a result of all of the following EXCEPT26)A)changes in the environment.B)overuse of antibiotics.C)microbial mutation.D)modern transportation.E)use of genetically modified foods.Answer:EExplanation:A)B)C)D)E)7

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27)Proof that a microbe could cause disease was provided by27)A)Pasteur.B)Lister.C)Wasserman.D)Semmelweis.E)Koch.Answer:EExplanation:A)B)C)D)E)28)Who was the first scientist to pursue a “magic bullet” that could be used to treat infectious disease?28)A)EhrlichB)SemmelweisC)PasteurD)ListerE)JennerAnswer:AExplanation:A)B)C)D)E)29)If you were setting up an experiment to disprove spontaneous generation in a liquid medium,which of the following would be essential to the experiment?29)A)using a sterile liquid and eliminating exposure to microorganismsB)adding carbon dioxide to the liquidC)starting with a liquid that contains microorganismsD)adding antibiotics to the liquidE)supplying the liquid with nutrientsAnswer:AExplanation:A)B)C)D)E)30)Classification of organisms into three domains is based on30)A)cellular proteins.B)cellular organization.C)the presence of a cell wall.D)nutritional requirements.E)the number of cells in the organism.Answer:BExplanation:A)B)C)D)E)8

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31)Commercial utilization of microbial products has become increasingly popular due to theirenvironmentally friendly nature. Removal of these products from the environment typicallyutilizes31)A)alcohol.B)organic solvents.C)soap.D)enzymes.E)organic acids.Answer:DExplanation:A)B)C)D)E)32)The microbial process of converting sugars to alcohol is known as32)A)pasteurization.B)fermentation.C)alcoholism.D)tyndallization.E)lyophilization.Answer:BExplanation:A)B)C)D)E)33)________ is the physician first associated with vaccination.33)A)JennerB)PasteurC)ListerD)KochE)EscherichAnswer:AExplanation:A)B)C)D)E)34)Normal microbiota are typically found in and on all the following body locations EXCEPT the34)A)skin.B)blood.C)colon.D)mouth.E)upper respiratory system.Answer:BExplanation:A)B)C)D)E)9

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35)Recombinant DNA technology has become an increasingly important part of our life. It is used forall of the following EXCEPT35)A)drug production.B)enhancing food longevity.C)synthesis of water.D)vaccine production.E)increasing the nutritional value of food.Answer:CExplanation:A)B)C)D)E)36)Who is credited with first observing microorganisms?36)A)Robert HookeB)Anton van LeeuwenhoekC)Louis PasteurD)Robert KochE)Carolus LinnaeusAnswer:BExplanation:A)B)C)D)E)37)The first step for directly linking a microbe to a specific disease according to Koch’s postulates is to37)A)inject a sample of blood or other body fluid from a diseased animal into a healthy animal.B)isolate microbes from the blood of healthy animals.C)culture the blood or other body fluid from a diseased animal using nutrient medium.D)obtain a sample of blood or other body fluid from a diseased animal.E)compare the blood of a sick animal to blood obtained from a healthy animal.Answer:DExplanation:A)B)C)D)E)38)Robert Koch identified the cause of38)A)diphtheria.B)tuberculosis.C)smallpox.D)anthrax.E)AIDS.Answer:DExplanation:A)B)C)D)E)10

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39)Regarding Louis Pasteur’s experiments with the S-neck flask, which of the following statements isTRUE?39)A)Air exchange was involved.B)All preexisting microorganisms were killed.C)A food source was provided.D)The possibility of contamination was removed.E)All of the answers are correct.Answer:EExplanation:A)B)C)D)E)40)Who is credited with first observing cells?40)A)Anton van LeeuwenhoekB)Louis PasteurC)Carolus LinnaeusD)Robert KochE)Robert HookeAnswer:EExplanation:A)B)C)D)E)41)In the nameStaphylococcus aureus,aureusis the41)A)genus.B)kingdom.C)domain name.D)family name.E)specific name.Answer:EExplanation:A)B)C)D)E)42)A prokaryotic cell may possess each of the following cellular components EXCEPT42)A)ribosomes.B)a nucleus.C)a cell wall.D)flagella.E)a cell membrane.Answer:BExplanation:A)B)C)D)E)11

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43)Each of the following organisms would be considered a microbe EXCEPT43)A)virus.B)bacterium.C)mushroom.D)yeast.E)protozoan.Answer:CExplanation:A)B)C)D)E)44)The arguments supporting spontaneous generation were finally disproved by44)A)Louis Pasteur.B)John Needham.C)Lazzaro Spallanzani.D)Francesco Redi.E)Rudolf Virchow.Answer:AExplanation:A)B)C)D)E)45)Vaccinations are available for all of the following diseases EXCEPT45)A)mumps.B)hepatitis B.C)rubella.D)measles.E)strep throat.Answer:EExplanation:A)B)C)D)E)TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.46)Bovine spongiform encephalitis (BSE, or “mad cow disease”) is caused by a virus.46)Answer:TrueFalseExplanation:47)All pathogens known to infect humans have been identified at this point in time.47)Answer:TrueFalseExplanation:12

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48)Infectious disease is almost totally eradicated in our world.48)Answer:TrueFalseExplanation:49)The process of pasteurization to reduce food spoilage utilizes high heat to kill all bacteria present.49)Answer:TrueFalseExplanation:50)Spontaneous generation refers to living cells arising only from other living cells.50)Answer:TrueFalseExplanation:51)Some viruses can contain both DNA and RNA.51)Answer:TrueFalseExplanation:52)All cells possess a cell wall.52)Answer:TrueFalseExplanation:53)Microbes are associated with life-sustaining benefits as well as life-threatening diseases.53)Answer:TrueFalseExplanation:54)Anton van Leeuwenhoek was the first microbiologist to use a microscope to examineenvironmental samples for the presence of microorganisms.54)Answer:TrueFalseExplanation:55)A student has obtained a sample of pond water for study. Using the high-power lens, he observesseveral cells with nuclei. He can conclude that the cells are NOT bacteria.55)Answer:TrueFalseExplanation:ESSAY. Write your answer in the space provided or on a separate sheet of paper.56)Explain the germ theory of disease and discuss why this theory is essential to the treatment of infectious disease.Answer:57)What was the function and importance of S-necked flasks in Louis Pasteur’s experiments in disprovingspontaneous generation?Answer:58)Compare and contrast prokaryotic and eukaryotic cells.Answer:59)What is an emerging disease, and what are some of the sources for these “new” infectious diseases?Answer:13

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Answer KeyTestname: C11)D2)D3)C4)B5)C6)D7)E8)B9)C10)A11)A12)B13)E14)D15)D16)E17)B18)C19)D20)E21)D22)E23)E24)C25)D26)E27)E28)A29)A30)B31)D32)B33)A34)B35)C36)B37)D38)D39)E40)E41)E42)B43)C44)A45)E46)FALSE47)FALSE48)FALSE49)FALSE50)FALSE14

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Answer KeyTestname: C151)FALSE52)FALSE53)TRUE54)TRUE55)TRUE56)57)58)59)15

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