Chapter 1 The Microbial World and You
Objective Questions
1) Which of the following pairs is mismatched?
A) Ehrlich chemotherapy
B) Koch aseptic surgery
C) Pasteur proof of biogenesis
D) Jenner vaccination
Answer: B
Skill: Recall
2) Which of the following is a scientific name?
A) IGAS
B) Flesh-eating bacteria
C) Group A streptococcus
D) Streptococcus pyogenes
E) Streptococci
Answer: D
Skill: Analysis
3) Which of the following is not a domain in the three-domain system?
A) Animalia
B) Archaea
C) Bacteria
D) Eukarya
Answer: A
Skill: Recall
4) Which of the following is true about fungi?
A) All are prokaryotic.
B) All are multicellular.
C) All require organic material for growth.
D) All grow using sunlight and carbon dioxide.
E) All are plants.
Answer: C
Skill: Recall
1
2
Test Bank for Microbiology: An Introduction
5) Which of the following is not true about protozoa?
A) They have rigid cell walls.
B) They are classified by their method of locomotion.
C) All are unicellular.
D) All have complex cells.
E) All are eukaryotic.
Answer: A
Skill: Recall
6) Which of the following is true about viruses?
A) They are not composed of cells.
B) They cannot metabolize nutrients.
C) They cannot reproduce themselves.
D) They have DNA or RNA.
E) All of the above.
Answer: E
Skill: Recall
7) Which of the following is probably true about all the experiments that proved spontaneous
generation?
A) Air was lacking.
B) Too much heat was applied.
C) The food source could not support life.
D) Microorganisms were already present.
E) All of the above.
Answer: D
Skill: Analysis
8) Regarding Pasteurʹs experiments with the S-neck flask, which of the following statements is
true?
A) There was air involved.
B) There was a food source involved.
C) Any possibility of contamination was removed.
D) All microorganisms were killed before beginning.
E) All of the above.
Answer: E
Skill: Understanding
CHAPTER 1
The Microbial World and You
9) Which of the following is true about insect control by microorganisms?
A) The insects develop resistance to the microorganisms.
B) The microorganisms are permanent in the environment.
C) The microorganisms are specific for the insect pest.
D) The microorganisms may cause disease in other animals.
E) This technique is just as dangerous as the use of chemical pesticides.
Answer: C
Skill: Analysis
10) Which of the following pairs is mismatched?
A) Hooke cell theory
B) van Leeuwenhoek germ theory
C) Lister aseptic surgery
D) Pasteur fermentation
E) None of the above
Answer: B
Skill: Recall
11) Who disproved the theory of spontaneous generation?
A) van Leeuwenhoek
B) Hooke
C) Pasteur
D) Koch
E) None of the above
Answer: C
Skill: Recall
12) Who observed cells in plant material?
A) van Leeuwenhoek
B) Hooke
C) Pasteur
D) Koch
E) None of the above
Answer: B
Skill: Recall
3
4
Test Bank for Microbiology: An Introduction
13) Who was the first to observe microorganisms with a microscope?
A) van Leeuwenhoek
B) Hooke
C) Pasteur
D) Koch
E) None of the above
Answer: A
Skill: Recall
14) Who proved that microorganisms cause disease?
A) van Leeuwenhoek
B) Hooke
C) Pasteur
D) Koch
E) None of the above
Answer: D
Skill: Recall
15) Which of the following is a scientific name?
A) Mycobacterium leprae
B) Hansenʹs bacillus
C) Leprosy bacterium
D) Acid-fast bacteria
Answer: A
Skill: Recall
16) Classification of organisms in the three domains is based on
A) Cell wall.
B) Number of cells.
C) Cell type.
D) Nutritional type.
E) Nucleus.
Answer: C
Skill: Recall
CHAPTER 1
The Microbial World and You
17) Which of the following statements is untrue?
A) All bacteria lack nuclear membranes.
B) All fungi are multicellular.
C) All protozoa are unicellular.
D) All viruses are parasites.
E) All fungi have nuclear membranes.
Answer: B
Skill: Analysis
18) Which of the following statements is true?
A) Viruses cannot reproduce outside of a host cell.
B) Bacteria cannot move.
C) Fungi are plants.
D) Protozoa have rigid cell walls.
E) Algae are parasites.
Answer: A
Skill: Recall
19) Which of the following findings was essential for Jennerʹs vaccination process?
A) A weakened microorganism may produce immunity.
B) A weakened microorganism will not cause disease.
C) Someone who recovers from a disease will not acquire that disease again.
D) Disease is caused by viruses.
E) Vaccination provides immunity.
Answer: A
Skill: Analysis
20) Which of the following requirements was necessary for Pasteur to disprove spontaneous
generation?
A) Providing a food source that would support growth
B) Supplying air
C) Keeping microorganisms out
D) Removing microorganisms that were initially present
E) All of the above
Answer: E
Skill: Analysis
5
6
Test Bank for Microbiology: An Introduction
21) Which of the following pairs is mismatched?
A) Immunologist studies ecology of Legionella pneumophila
B) Virologist studies human immunodeficiency virus
C) Microbial ecologist studies bacteria that degrade oil
D) Microbial physiologist studies fermentation of sourdough bread
E) Molecular biologist studies recombinant DNA
Answer: A
Skill: Analysis
22) Which of the following pairs is mismatched?
A) Chemotherapy treatment of disease
B) Pathogen disease causing
C) Vaccine a preparation of microorganisms
D) Penicillin antibiotic
E) Normal microbiota harmful
Answer: E
Skill: Recall
23) Which of the following is not part of the study of microbiology?
A) Bacteria
B) Fungi
C) Viruses
D) Insects
E) Helminths
Answer: D
Skill: Recall
24) Which one of the following does not belong with the others?
A) Archaea
B) Bacteria
C) Eukarya
D) Fungi
Answer: D
Skill: Understanding
CHAPTER 1
The Microbial World and You
25) Which of the following is not an example of biotechnology?
A) Bacterial production of French bread
B) Bacterial degradation of a dead animal
C) Bacterial production of yogurt
D) Bacterial production of vinegar
E) None of the above
Answer: E
Skill: Analysis
26) Recombinant DNA technology can be used to make all of the following except
A) Vaccines.
B) Human hormones.
C) Drugs.
D) Life.
E) None of the above.
Answer: D
Skill: Understanding
27) The best definition of biotechnology is
A) The development of recombinant DNA technology.
B) The use of living organisms to make desired products.
C) Curing diseases.
D) The use of microorganisms in sewage treatment.
E) All of the above.
Answer: B
Skill: Analysis
28) You are observing a cell through a microscope and note that it has no apparent nucleus. You
conclude that it most likely
A) Has a peptidoglycan cell wall.
B) Has a cellulose cell wall.
C) Moves by pseudopods.
D) Is part of a multicellular animal.
E) None of the above.
Answer: A
Skill: Analysis
7
8
Test Bank for Microbiology: An Introduction
29) A nucleated, green cell that moves by means of flagella is a(n) _____.
A) Alga
B) Bacterium
C) Fungus
D) Helminth
E) Virus
Answer: A
Skill: Recall
30) An agent that reproduces in cells but is not composed of cells and contains RNA as its genetic
material is a(n) _____.
A) Alga
B) Bacterium
C) Fungus
D) Helminth
E) Virus
Answer: E
Skill: Recall
31) A multicellular organism that has chitin cell walls and absorbs organic material is a(n) _____.
A) Alga
B) Bacterium
C) Fungus
D) Helminth
E) Virus
Answer: C
Skill: Recall
32) A multicellular organism that has a mouth and lives in an animal host is a(n) _____.
A) Alga
B) Bacterium
C) Fungus
D) Helminth
E) Virus
Answer: D
Skill: Recall
CHAPTER 1
The Microbial World and You
33) In the name Escherichia coli, coli is the
A) Domain.
B) Kingdom.
C) Genus.
D) Specific epithet.
E) None of the above
Answer: D
Skill: Analysis
34) Which of the following pairs is mismatched?
A) Lancefield immunology
B) Weizmann virology
C) Jenner immunology
D) Jacob and Monod microbial genetics
E) Winogradsky microbial ecology
Answer: B
Skill: Recall
35) Which of the following does not belong with the others?
A) Recycling elements
B) Human diseases
C) Sewage treatment
D) Bioremediation
E) Insect control
Answer: B
Skill: Analysis
36) You are looking at a white cottony growth on a culture medium. Microscopic examination
reveals it is multicellular. You can conclude all of the following about this organism except that
it
A) Has cell walls.
B) Has DNA enclosed in a nucleus.
C) Is eukaryotic.
D) Is a bacterium.
E) Absorbs organic nutrients.
Answer: D
Skill: Analysis
9
10
Test Bank for Microbiology: An Introduction
37) All members of the following groups contain DNA except
A) Bacteria.
B) Fungi.
C) Helminths.
D) Protozoa.
E) Viruses.
Answer: E
Skill: Recall
38) Which one of the following does not belong with the others?
A) Cellulose
B) Chitin
C) Nucleus
D) Peptidoglycan
Answer: C
Skill: Understanding
39) All of the following have cell walls except
A) Animalia.
B) Bacteria.
C) Fungi.
D) Plantae.
E) None of the above.
Answer: A
Skill: Recall
40) Which of the following does not belong with the others?
A) Animalia
B) Fungi
C) Helminth
D) Plantae
E) Protista
Answer: E
Skill: Understanding
CHAPTER 1
41) Fungi differ from bacteria because fungi
A) Have cell walls.
B) Have DNA.
C) Have a nucleus.
D) Spoil food.
E) None of the above.
Answer: C
Skill: Analysis
42) Archaea differ from bacteria because archaea
A) Lack peptidoglycan.
B) Lack nuclei.
C) Use organic compounds for food.
D) Reproduce by binary fission.
E) None of the above.
Answer: A
Skill: Analysis
43) Bacteria differ from viruses because bacteria
A) Have DNA and RNA.
B) Have cells.
C) Can live without a host.
D) All of the above.
Answer: D
Skill: Analysis
44) Which of the following lack a nucleus?
A) Animalia
B) Bacteria
C) Fungi
D) Protozoa
E) None of the above
Answer: B
Skill: Recall
The Microbial World and You
11
12
Test Bank for Microbiology: An Introduction
45) Sourdough bread differs from conventional bread during leavening because
A) Yeasts produce carbon dioxide and ethyl alcohol.
B) Yeasts produce acid.
C) Lactobacillus produce acids.
D) Acids are added to it during rising.
E) Of the temperature and humidity.
Answer: C
Skill: Recall
Essay Questions
1) In 1835 Bassi showed that a silkworm disease was caused by a fungus, and in 1865 Pasteur
found another silkworm disease was caused by a protozoan. Why do we use Kochʹs postulates
instead of ʺBassiʹsʺ or ʺPasteurʹsʺ postulates?
2) List two examples of biotechnology that involve recombinant DNA technology and two
examples that do not.
3) Paul Berg received the Nobel Prize for developing the procedure for incorporating fragments
of animal DNA into bacteria. List some reasons why his work was a major contribution to
science.
Chapter 2 Chemical Principles
Objective Questions
1) Which of the following statements is not true about the atom
12
C?
6
A) It has 6 protons in its nucleus.
B) It has 12 neutrons in its nucleus.
C) It has 6 electrons orbiting the nucleus.
D) Its atomic number is 6.
E) Its atomic weight is 12.
Answer: B
Skill: Understanding
Table 2.1
16
O
8
12
C
6
1
H
1
2) Calculate the molecular weight of ethyl alcohol, C 2H5OH, using the information in Table 2.1.
A) 96
B) 46
C) 34
D) 33
E) Canʹt tell
Answer: B
Skill: Analysis
3) Which of the following is not true about enzymes?
A) Enzymes are made of proteins.
B) Enzymes lower the activation energy of a reaction.