Microbiology Midterm Review
Practice test for the Microbiology Midterm.
- 1.Disease-causing microorganisms are called
- A.
Decomposers.
- B.
Procaryotes.
- C.
Pathogens.
- D.
Eucaryotes.
- E.
Fermenters.
- 2.The microorganisms that do not have a nucleus in their cells are called
- A.
Decomposers.
- B.
Procaryotes.
- C.
Pathogens.
- D.
Eucaryotes.
- E.
Fermenters.
- 3.When humans manipulate the genes of microorganisms the process is called
- A.
Bioremediation.
- B.
Genetic engineering.
- C.
Epidemiology.
- D.
Immunology.
- E.
Taxonomy.
- 4.Which of the following is not considered a microorganism?
- A.
Mosquito
- B.
Protozoa
- C.
Bacteria
- D.
Viruses
- E.
Fungi
- 5.Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms?
- A.
Cause human disease
- B.
Lack a nucleus
- C.
Cannot be seen without a microscope
- D.
Contain genetic material
- E.
Lack cell structure
- 6.Pasteur used swan-neck flasks in his experiments to prove that
- A.
Air had "vital forces" capable of spontaneous generation.
- B.
Microbial fermentation could be used to make wine.
- C.
Dust in air was a source of living microorganisms.
- D.
Microorganisms could cause disease.
- E.
Microorganisms could be grown in laboratory infusions.
- 7.Spontaneous generation is the belief that
- A.
Germs cause infectious diseases.
- B.
Microbes are diverse and ubiquitous.
- C.
Microbes placed in an infusion can grow in it.
- D.
Aseptic techniques reduce microbes in medical settings.
- E.
Living things arise from nonliving matter.
- 8.Koch's postulates are criteria used to establish that
- A.
Microbes are found on dust particles.
- B.
A specific microbe is the cause of a specific disease.
- C.
Life forms can only arise from preexisting life forms.
- D.
A specific microbe should be classified in a specific kingdom.
- E.
Microbes can be used to clean up toxic spills.
- 9.Which of the following is a scientific name?
- A.
Bacteria
- B.
Protista
- C.
Species
- D.
Bacillus subtilis
- E.
Bacilli
- 10.The study of evolutionary relationships among organisms is called
- A.
Biotechnology.
- B.
Genetics.
- C.
Recombinant DNA.
- D.
Phylogeny.
- E.
Taxonomy.
- 11.A scientist collects grass clippings to find the source of an outbreak of tularemia is an example of working in the field of
- A.
Food microbiology.
- B.
Epidemiology.
- C.
Agricultural microbiology.
- D.
Genetic engineering.
- E.
Biotechnology.
- 12.Helminths are
- A.
Bacteria.
- B.
Protozoa.
- C.
Molds.
- D.
Parasitic worms.
- E.
Infectious particles.
- 13.Organisms called parasites are
- A.
Always classified in the kingdom Monera.
- B.
Always harmful to their host.
- C.
The decomposers in ecosystems.
- D.
Always a virus.
- E.
Free-living.
- 14.The surgeon who advocated using disinfectants on hands and in the air prior to surgery was
- A.
Joseph Lister.
- B.
Ignaz Semmelweis.
- C.
Robert Koch.
- D.
Louis Pasteur.
- E.
Antonie van Leeuwenhoek.
- 15.Which of the following are the main decomposers of the earth?
- A.
Bacteria and fungi
- B.
Bacteria and viruses
- C.
Algae and viruses
- D.
Protists and fungi
- E.
All organisms are decomposers
- 16.Which of the following diseases is transmitted by mosquitoes?
- A.
Diarrheal diseases
- B.
Tuberculosis
- C.
Malaria
- D.
Septicemia
- E.
Influenza
- 17.All of the following are correct about prokaryotes except
- A.
They are smaller than eukaryotes.
- B.
They lack a nucleus.
- C.
They are less complex than eukaryotes.
- D.
They have organelles.
- E.
They are found nearly everywhere.
- 18.Which of the following is the correct way to write the scientific name of this bacterium?
- A.
Staph Aureus
- B.
Staphylococcus Aureus
- C.
Staphylococcus aureus
- D.
Staphylococcus Aureus
- E.
S. Aureus
- 19.Which of the following diseases probably involves microbial infection?
- A.
Gastric ulcers
- B.
Female infertility
- C.
Coronary artery disease
- D.
Cervical cancer
- E.
All of the choices are correct.
- 20.The Five I's of studying microorganisms include all of the following except
- A.
Inoculation.
- B.
Incubation.
- C.
Infection.
- D.
Isolation.
- E.
Identification.
- 21.All of the following are examples of different types of microbiological media except
- A.
Broth.
- B.
Enriched.
- C.
Agar.
- D.
Petri dish.
- E.
Gelatin.
- 22.The term that refers to the purposeful addition of microorganisms into a laboratory nutrient medium is
- A.
Isolation.
- B.
Inoculation.
- C.
Immunization.
- D.
Infection.
- E.
Contamination.
- 23.Which of the following is essential for development of discrete, isolated colonies?
- A.
Broth medium
- B.
Differential medium
- C.
Selective medium
- D.
Solid medium
- E.
Assay medium
- 24.A microbiologist inoculates Staphylococcus aureus into a culture medium. Following incubation, both Staphylococcus aureus and Staphylococcus epidermidis are determined to be growing in this culture. What is the most likely explanation?
- A.
The microbiologist used too much inoculum.
- B.
The culture is contaminated.
- C.
The incubation temperature was incorrect.
- D.
The culture medium must be selective.
- E.
The culture medium must be differential.
- 25.A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a culture medium. Following incubation, only the E. coli grows in the culture. What is the most likely explanation?
- A.
The microbiologist used too much inoculum.
- B.
The culture is contaminated.
- C.
The incubation temperature was incorrect.
- D.
The culture medium must be selective.
- E.
The culture medium must be differential.
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