Microbiology Final Exam PRACTICE
TEST|200+ QUESTIONS AND CORRECT
DETAILED ANSWERS
In the name Escherichia coli, coli is the
Domain.
Kingdom.
Genus.
Specific epithet.
Discoverer. - AnswerSpecific 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 - AnswerThe 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 - AnswerLife
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 - AnswerIdentifying bacteria
Which of the following is NOT a domain in the three-domain system?
Animalia
,Archaea
Bacteria
Eukarya - AnswerAnimalia
Identify the following reaction: NH4OH NH3 + H2O
Dehydration synthesis reaction
Hydrolysis reaction
Exchange reaction
Reversible reaction
Ionic reaction - AnswerReversible reaction
Identify the following reaction: HCl + NaHCO3 NaCl + H2CO3
Dehydration synthesis reaction
Hydrolysis reaction
Exchange reaction
Reversible reaction
Ionic reaction - AnswerExchange 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. - AnswerPlasma 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. - AnswerThey are exchange reactions.
Which compound in Figure 2.1 is an organic acid? - Answera
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 - AnswerDarkfield 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 - AnswerGram-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 - AnswerElectron microscope
The appearance of gram-negative bacteria after addition of the mordant in the Gram
stain.
Purple
Red
Colorless
Brown - AnswerPurple
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. - AnswerA basic dye.
Which of the following have a cell wall?
Protoplasts
Fungi
L forms
Mycoplasmas
Animal cells - AnswerFungi
In Figure 4.3, which diagram of a cell wall contains porins? - Answerb
, Which of the following is NOT a chemical component of a bacterial cell wall?
Cellulose
Peptidoglycan
Teichoic acids
Peptide chains
N-acetylmuramic acid - AnswerCellulose
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
Microbial physiologist - studies fermentation of sourdough bread
Molecular biologist - studies recombinant DNA - AnswerImmunologist - studies
ecology of Legionella pneumophila
In Figure 5.8, the path labeled (2) is the flow of
Electrons.
Protons.
Energy.
Water.
Glucose. - AnswerProtons.
What is the most acidic place in Figure 5.8? - Answera
An enzyme, citrate synthase, in the Krebs cycle is inhibited by ATP. This is an example
of all of the following EXCEPT
Allosteric inhibition.
Competitive inhibition.
Feedback inhibition.
Noncompetitive inhibition.
Beta oxidation. - AnswerCompetitive inhibition.
A strictly fermentative bacterium produces energy
By glycolysis only.
By aerobic respiration only.
By fermentation or aerobic respiration.
Only in the absence of oxygen.
Only in the presence of oxygen. - AnswerBy glycolysis only.
TEST|200+ QUESTIONS AND CORRECT
DETAILED ANSWERS
In the name Escherichia coli, coli is the
Domain.
Kingdom.
Genus.
Specific epithet.
Discoverer. - AnswerSpecific 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 - AnswerThe 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 - AnswerLife
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 - AnswerIdentifying bacteria
Which of the following is NOT a domain in the three-domain system?
Animalia
,Archaea
Bacteria
Eukarya - AnswerAnimalia
Identify the following reaction: NH4OH NH3 + H2O
Dehydration synthesis reaction
Hydrolysis reaction
Exchange reaction
Reversible reaction
Ionic reaction - AnswerReversible reaction
Identify the following reaction: HCl + NaHCO3 NaCl + H2CO3
Dehydration synthesis reaction
Hydrolysis reaction
Exchange reaction
Reversible reaction
Ionic reaction - AnswerExchange 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. - AnswerPlasma 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. - AnswerThey are exchange reactions.
Which compound in Figure 2.1 is an organic acid? - Answera
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 - AnswerDarkfield 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 - AnswerGram-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 - AnswerElectron microscope
The appearance of gram-negative bacteria after addition of the mordant in the Gram
stain.
Purple
Red
Colorless
Brown - AnswerPurple
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. - AnswerA basic dye.
Which of the following have a cell wall?
Protoplasts
Fungi
L forms
Mycoplasmas
Animal cells - AnswerFungi
In Figure 4.3, which diagram of a cell wall contains porins? - Answerb
, Which of the following is NOT a chemical component of a bacterial cell wall?
Cellulose
Peptidoglycan
Teichoic acids
Peptide chains
N-acetylmuramic acid - AnswerCellulose
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
Microbial physiologist - studies fermentation of sourdough bread
Molecular biologist - studies recombinant DNA - AnswerImmunologist - studies
ecology of Legionella pneumophila
In Figure 5.8, the path labeled (2) is the flow of
Electrons.
Protons.
Energy.
Water.
Glucose. - AnswerProtons.
What is the most acidic place in Figure 5.8? - Answera
An enzyme, citrate synthase, in the Krebs cycle is inhibited by ATP. This is an example
of all of the following EXCEPT
Allosteric inhibition.
Competitive inhibition.
Feedback inhibition.
Noncompetitive inhibition.
Beta oxidation. - AnswerCompetitive inhibition.
A strictly fermentative bacterium produces energy
By glycolysis only.
By aerobic respiration only.
By fermentation or aerobic respiration.
Only in the absence of oxygen.
Only in the presence of oxygen. - AnswerBy glycolysis only.
