STRAIGHTERLINE MICROBIOLOGY FINAL
EXAM 2025-2026 QUESTIONS AND CORRECT
ANSWERS GRADED A+
What immune cell secretes numerous cytokines that help to coordinate the
response of other immune cells?
TH cell
What enzymes are used to amplify DNA during PCR?
DNA polymerase
Which of the following is a scientific name?
Streptococcus pyogenes
Eosin-methylene blue agar, or EMB, is a commonly used bacteriological medium
for growing gram-negative bacteria from complex environments. It contains two
dyes, eosin and methylene blue, as well as the sugar lactose. Eosin is a pH
indicator that changes color when the medium is acidic, while methylene blue
inhibits the growth of most gram-positive bacteria. If an organism consumes
lactose, acid will be produced, causing the bacterial colonies to change color.
Based upon this description, this medium is ______
differential and selective
,A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the
Last Universal Common Ancestor would show Archaea
branching off the Domain Eukarya.
In the cell cytoplasm, molecules of ATP are a
solute
The _____ of the microscope holds and allows selection of the objective lenses.
nosepiece
Characteristics shared by all cells include
the presence of cellular fluid, the possession of genetic information, and a
membrane serving as a cell boundary.
Anything that occupies space and mass is called...
matter
Trees of life illustrate the phylogenetic relationships of all organisms were
traditionally based on _____; newer methods for determining phylogeny rely on
_____.
Morphology; nucleic acid sequences
,Covalent bonds
result from sharing electrons
One nucleotide contains one
phosphate, pentose sugar, nitrogen base
Among the types of microorganisms, the ___. are noncellullar
viruses
Using microbes to detoxify a site contaminated with heavy metals is an example of
____
Bioremediation
C6H12O6+C6H12O6---> C12H22O11+H2O
a dehydration synthesis
Which scientific field is involved in the identification, classification, and naming
of organisms?
Taxonomy
, Which type of medium would be the best choice when shipping a sample of
bacteria from a clinic to a laboratory for testing?
Transport-meduim
Which activity is an example of biotechnology?
Which of the following is produced by adding 1% to 5% agar to nutrient broth that
is then boiled and cooled?
A solid medium
Most biochemical macromolecules are polymers, which are chains of...
repeating monomers
A reducing medium contains
substances that remove oxygen
Which of the following parts of a microscope magnifies the specimen to produce a
real image of the specimen?
Objective lens
EXAM 2025-2026 QUESTIONS AND CORRECT
ANSWERS GRADED A+
What immune cell secretes numerous cytokines that help to coordinate the
response of other immune cells?
TH cell
What enzymes are used to amplify DNA during PCR?
DNA polymerase
Which of the following is a scientific name?
Streptococcus pyogenes
Eosin-methylene blue agar, or EMB, is a commonly used bacteriological medium
for growing gram-negative bacteria from complex environments. It contains two
dyes, eosin and methylene blue, as well as the sugar lactose. Eosin is a pH
indicator that changes color when the medium is acidic, while methylene blue
inhibits the growth of most gram-positive bacteria. If an organism consumes
lactose, acid will be produced, causing the bacterial colonies to change color.
Based upon this description, this medium is ______
differential and selective
,A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the
Last Universal Common Ancestor would show Archaea
branching off the Domain Eukarya.
In the cell cytoplasm, molecules of ATP are a
solute
The _____ of the microscope holds and allows selection of the objective lenses.
nosepiece
Characteristics shared by all cells include
the presence of cellular fluid, the possession of genetic information, and a
membrane serving as a cell boundary.
Anything that occupies space and mass is called...
matter
Trees of life illustrate the phylogenetic relationships of all organisms were
traditionally based on _____; newer methods for determining phylogeny rely on
_____.
Morphology; nucleic acid sequences
,Covalent bonds
result from sharing electrons
One nucleotide contains one
phosphate, pentose sugar, nitrogen base
Among the types of microorganisms, the ___. are noncellullar
viruses
Using microbes to detoxify a site contaminated with heavy metals is an example of
____
Bioremediation
C6H12O6+C6H12O6---> C12H22O11+H2O
a dehydration synthesis
Which scientific field is involved in the identification, classification, and naming
of organisms?
Taxonomy
, Which type of medium would be the best choice when shipping a sample of
bacteria from a clinic to a laboratory for testing?
Transport-meduim
Which activity is an example of biotechnology?
Which of the following is produced by adding 1% to 5% agar to nutrient broth that
is then boiled and cooled?
A solid medium
Most biochemical macromolecules are polymers, which are chains of...
repeating monomers
A reducing medium contains
substances that remove oxygen
Which of the following parts of a microscope magnifies the specimen to produce a
real image of the specimen?
Objective lens
