Microbiology UTA 2460 – Final Exam
Questions and Solutions
Which method often results in colonies developing down throughout the agar along with
some colonies on the surface... ✅pour plate
Which of the following organisms shows the proper use of binomial nomenclature...
✅Escherichia coli (italicized)
The type of microscope in which you would see brightly illuminated specimens against a
black background is... ✅dark-field
6.5% NaCl broth favors the growth of Gram positive organisms, while inhibiting the
growth of Gram negative organisms, this media is... ✅selective
A pure culture contains... ✅only one identified species of microorganism
Which statement is true of all ions that are cations... ✅The ion has more protons than
electrons
Which of the following is not a polymer... ✅glucose
Koch's postulates are criteria used to establish that... ✅a specific microbe is the cause
of a specific disease
Which of the following is not a differential stain based on the information below...
✅methylene blue stain - one stain
You have a solution with a pH of 6. What is the hydroxide ion concentration [OH-]...
✅10^-8 M
Which of the following functional groups is mismatched to the organic compound in
which it is typically contained... ✅phosphate - carbohydrates
Which one is not a cause of infectious death worldwide... ✅Ebola
MSA agar favors the growth of Gram positive bacteria, while inhibiting the growth of
Gram negative bacteria. S. aureus produce yellow colonies when growing on MSA agar,
while S. epidermis grows pink. This agar is... ✅A (selective) & B (differential)
The five I's of studying microorganisms include all of the following except... ✅infection
, Using microbes to detoxify a site contaminated with heavy meatls is an example of...
✅bioremediation
Bacteria, archaea & eukaryotes arose... ✅2.9 billion years ago
Which choice below lists emerging diseases... ✅HIV, SARS, Lassa Fever
What type of bonds are formed by dehydration synthesis between adjacent amino
acids... ✅peptide
Hydrogen bonds... ✅result from attractive forces between molecules with polar
covalent bonds
Agar is a complex polysaccharide that comes from a... ✅red algae
Which of the following would have glycosidic bonds... ✅polysaccharides
One nucleotide contains one... ✅all of the choices are correct (pentose sugar,
phosphate, nitrogen base)
Which of the following is not a pyrimidne... ✅adenine
If a microbiologist is studying a specimen at a total magnification of 950X, what is the
magnifying power of the objective lens if the ocular lens is 10X... ✅95X
The atomic number of sulfur is 16. What is the bonding capacity of sulfur... ✅2
__ is the most infectious microbe caused through non-human-to-human transmission,
while __ is the most infectious microbe caused by human-to-human transmission...
✅malaria, measles
Bacteria that require speical growth factors and complex nutrients are termed...
✅fastidious
Ionic compounds... ✅are hydrophilic
__ magnifies the speciment to produce a real image of the specimen, while __
magnifies the speciment to produce the virtual image of the specimen... ✅objective
lens, ocular lens
An amino acid contains all of the following except a... ✅phosphate
The alpha (a) helix is a type of __ protein structure... ✅secondary
Questions and Solutions
Which method often results in colonies developing down throughout the agar along with
some colonies on the surface... ✅pour plate
Which of the following organisms shows the proper use of binomial nomenclature...
✅Escherichia coli (italicized)
The type of microscope in which you would see brightly illuminated specimens against a
black background is... ✅dark-field
6.5% NaCl broth favors the growth of Gram positive organisms, while inhibiting the
growth of Gram negative organisms, this media is... ✅selective
A pure culture contains... ✅only one identified species of microorganism
Which statement is true of all ions that are cations... ✅The ion has more protons than
electrons
Which of the following is not a polymer... ✅glucose
Koch's postulates are criteria used to establish that... ✅a specific microbe is the cause
of a specific disease
Which of the following is not a differential stain based on the information below...
✅methylene blue stain - one stain
You have a solution with a pH of 6. What is the hydroxide ion concentration [OH-]...
✅10^-8 M
Which of the following functional groups is mismatched to the organic compound in
which it is typically contained... ✅phosphate - carbohydrates
Which one is not a cause of infectious death worldwide... ✅Ebola
MSA agar favors the growth of Gram positive bacteria, while inhibiting the growth of
Gram negative bacteria. S. aureus produce yellow colonies when growing on MSA agar,
while S. epidermis grows pink. This agar is... ✅A (selective) & B (differential)
The five I's of studying microorganisms include all of the following except... ✅infection
, Using microbes to detoxify a site contaminated with heavy meatls is an example of...
✅bioremediation
Bacteria, archaea & eukaryotes arose... ✅2.9 billion years ago
Which choice below lists emerging diseases... ✅HIV, SARS, Lassa Fever
What type of bonds are formed by dehydration synthesis between adjacent amino
acids... ✅peptide
Hydrogen bonds... ✅result from attractive forces between molecules with polar
covalent bonds
Agar is a complex polysaccharide that comes from a... ✅red algae
Which of the following would have glycosidic bonds... ✅polysaccharides
One nucleotide contains one... ✅all of the choices are correct (pentose sugar,
phosphate, nitrogen base)
Which of the following is not a pyrimidne... ✅adenine
If a microbiologist is studying a specimen at a total magnification of 950X, what is the
magnifying power of the objective lens if the ocular lens is 10X... ✅95X
The atomic number of sulfur is 16. What is the bonding capacity of sulfur... ✅2
__ is the most infectious microbe caused through non-human-to-human transmission,
while __ is the most infectious microbe caused by human-to-human transmission...
✅malaria, measles
Bacteria that require speical growth factors and complex nutrients are termed...
✅fastidious
Ionic compounds... ✅are hydrophilic
__ magnifies the speciment to produce a real image of the specimen, while __
magnifies the speciment to produce the virtual image of the specimen... ✅objective
lens, ocular lens
An amino acid contains all of the following except a... ✅phosphate
The alpha (a) helix is a type of __ protein structure... ✅secondary
