Microbiology Final Exam PRACTICE TEST
In the name Escherichia coli, coli is the
Domain.
Kingdom.
Genus.
Specific epithet.
Discoverer. - CORRECT ANSWER-Specific epithet.
Which of the following is the best definition of biotechnology?
The development of recombinant DNA technology
The use of living organisms to make desired products
The curing of diseases
The use of microorganisms in sewage treatment
Bacterial production of foods - CORRECT ANSWER-The use of living organisms
to make desired products
Which of the following CANNOT be made by using recombinant DNA
technology?
Vaccines
Human hormones
Pharmaceutical drugs
Life
Pest-resistant crops - CORRECT ANSWER-Life
Which of the following requirements was NOT necessary for Pasteur to disprove
spontaneous generation?
Providing a food source that would support growth
Supplying air
Keeping microorganisms out
Removing microorganisms that were initially present
Identifying bacteria - CORRECT ANSWER-Identifying bacteria
,Which of the following is NOT a domain in the three-domain system?
Animalia
Archaea
Bacteria
Eukarya - CORRECT ANSWER-Animalia
Identify the following reaction: NH4OH NH3 + H2O
Dehydration synthesis reaction
Hydrolysis reaction
Exchange reaction
Reversible reaction
Ionic reaction - CORRECT ANSWER-Reversible reaction
Identify the following reaction: HCl + NaHCO3 NaCl + H2CO3
Dehydration synthesis reaction
Hydrolysis reaction
Exchange reaction
Reversible reaction
Ionic reaction - CORRECT ANSWER-Exchange reaction
Assume Saccharomyces cerevisiae is grown in a nutrient medium containing the
radioisotope 32P. After a 48-hour incubation, the 32P would most likely be found
in the S. cerevisiae's
Plasma membrane.
Cell wall.
Water.
Proteins.
Carbohydrates. - CORRECT ANSWER-Plasma membrane.
Which of the following statements about the reactions in Table 2.2 is false?
They are exchange reactions.
, They are ionization reactions.
They occur when the reactants are dissolved in water.
They are dissociation reactions.
They are reversible reactions. - CORRECT ANSWER-They are exchange
reactions.
Which compound in Figure 2.1 is an organic acid? - CORRECT ANSWER-a
This microscope produces an image of a light cell against a dark background;
internal structures are NOT visible.
Compound light microscope
Phase-contrast microscope
Darkfield microscope
Fluorescence microscope
Electron microscope - CORRECT ANSWER-Darkfield microscope
Which of the following pairs is mismatched?
Gram-negative bacteria - negative stain
Iodine - mordant
Alcohol-acetone - decolorizer
Acid-alcohol - decolorizer
Crystal violet - simple stain - CORRECT ANSWER-Gram-negative bacteria -
negative stain
In this microscope, the observer does NOT look at an image through a lens.
Compound light microscope
Phase-contrast microscope
Darkfield microscope
Fluorescence microscope
Electron microscope - CORRECT ANSWER-Electron microscope
The appearance of gram-negative bacteria after addition of the mordant in the
Gram stain.
, Purple
Red
Colorless
Brown - CORRECT ANSWER-Purple
The counterstain in the acid-fast stain is
A basic dye.
An acid dye.
A negative stain.
A mordant.
Necessary to determine acid-fast cells. - CORRECT ANSWER-A basic dye.
Which of the following have a cell wall?
Protoplasts
Fungi
L forms
Mycoplasmas
Animal cells - CORRECT ANSWER-Fungi
In Figure 4.3, which diagram of a cell wall contains porins? - CORRECT
ANSWER-b
Which of the following is NOT a chemical component of a bacterial cell wall?
Cellulose
Peptidoglycan
Teichoic acids
Peptide chains
N-acetylmuramic acid - CORRECT ANSWER-Cellulose
Which of the following pairs is mismatched?
Immunologist - studies ecology of Legionella pneumophila
Virologist - studies human immunodeficiency virus
Microbial ecologist - studies bacteria that degrade oil
In the name Escherichia coli, coli is the
Domain.
Kingdom.
Genus.
Specific epithet.
Discoverer. - CORRECT ANSWER-Specific epithet.
Which of the following is the best definition of biotechnology?
The development of recombinant DNA technology
The use of living organisms to make desired products
The curing of diseases
The use of microorganisms in sewage treatment
Bacterial production of foods - CORRECT ANSWER-The use of living organisms
to make desired products
Which of the following CANNOT be made by using recombinant DNA
technology?
Vaccines
Human hormones
Pharmaceutical drugs
Life
Pest-resistant crops - CORRECT ANSWER-Life
Which of the following requirements was NOT necessary for Pasteur to disprove
spontaneous generation?
Providing a food source that would support growth
Supplying air
Keeping microorganisms out
Removing microorganisms that were initially present
Identifying bacteria - CORRECT ANSWER-Identifying bacteria
,Which of the following is NOT a domain in the three-domain system?
Animalia
Archaea
Bacteria
Eukarya - CORRECT ANSWER-Animalia
Identify the following reaction: NH4OH NH3 + H2O
Dehydration synthesis reaction
Hydrolysis reaction
Exchange reaction
Reversible reaction
Ionic reaction - CORRECT ANSWER-Reversible reaction
Identify the following reaction: HCl + NaHCO3 NaCl + H2CO3
Dehydration synthesis reaction
Hydrolysis reaction
Exchange reaction
Reversible reaction
Ionic reaction - CORRECT ANSWER-Exchange reaction
Assume Saccharomyces cerevisiae is grown in a nutrient medium containing the
radioisotope 32P. After a 48-hour incubation, the 32P would most likely be found
in the S. cerevisiae's
Plasma membrane.
Cell wall.
Water.
Proteins.
Carbohydrates. - CORRECT ANSWER-Plasma membrane.
Which of the following statements about the reactions in Table 2.2 is false?
They are exchange reactions.
, They are ionization reactions.
They occur when the reactants are dissolved in water.
They are dissociation reactions.
They are reversible reactions. - CORRECT ANSWER-They are exchange
reactions.
Which compound in Figure 2.1 is an organic acid? - CORRECT ANSWER-a
This microscope produces an image of a light cell against a dark background;
internal structures are NOT visible.
Compound light microscope
Phase-contrast microscope
Darkfield microscope
Fluorescence microscope
Electron microscope - CORRECT ANSWER-Darkfield microscope
Which of the following pairs is mismatched?
Gram-negative bacteria - negative stain
Iodine - mordant
Alcohol-acetone - decolorizer
Acid-alcohol - decolorizer
Crystal violet - simple stain - CORRECT ANSWER-Gram-negative bacteria -
negative stain
In this microscope, the observer does NOT look at an image through a lens.
Compound light microscope
Phase-contrast microscope
Darkfield microscope
Fluorescence microscope
Electron microscope - CORRECT ANSWER-Electron microscope
The appearance of gram-negative bacteria after addition of the mordant in the
Gram stain.
, Purple
Red
Colorless
Brown - CORRECT ANSWER-Purple
The counterstain in the acid-fast stain is
A basic dye.
An acid dye.
A negative stain.
A mordant.
Necessary to determine acid-fast cells. - CORRECT ANSWER-A basic dye.
Which of the following have a cell wall?
Protoplasts
Fungi
L forms
Mycoplasmas
Animal cells - CORRECT ANSWER-Fungi
In Figure 4.3, which diagram of a cell wall contains porins? - CORRECT
ANSWER-b
Which of the following is NOT a chemical component of a bacterial cell wall?
Cellulose
Peptidoglycan
Teichoic acids
Peptide chains
N-acetylmuramic acid - CORRECT ANSWER-Cellulose
Which of the following pairs is mismatched?
Immunologist - studies ecology of Legionella pneumophila
Virologist - studies human immunodeficiency virus
Microbial ecologist - studies bacteria that degrade oil
