Page 1 of 167
WESTCOTT MICROBIO FINAL Exam NEWEST 450
QUESTIONS AND VERIFIED SOLUTIONS 2026-2027
LATEST UPDATE THIS YEAR
FINAL westcott microbio
Which would be the best choice for viewing internal structures of a living protist such as a
Paramecium?
a brightfield microscope with a stain
a brightfield microscope without a stain
a darkfield microscope
a transmission electron microscope
darkfield microscope
Which type of microscope is especially useful for viewing thick structures such as biofilms?
a transmission electron microscope
a scanning electron microscopes
a phase-contrast microscope
a confocal scanning laser microscope
an atomic force microscope
a confocal scanning laser microscope
,Page 2 of 167
.
Which type of microscope would be the best choice for viewing very small surface structures
of a cell?
a transmission electron microscope
a scanning electron microscope
a brightfield microscope
a darkfield microscope
a phase-contrast microscope
a scanning electron microscope
What type of microscope uses an annular stop?
a transmission electron microscope
a scanning electron microscope
a brightfield microscope
a darkfield microscope
a phase-contrast microscope
a phase contrast microscrope
What mordant is used in Gram staining?
crystal violet
safranin
,Page 3 of 167
acid-alcohol
iodine
iodine
What is one difference between specimen preparation for a transmission electron
microscope (TEM) and preparation for a scanning electron microscope (SEM)?
Only the TEM specimen requires sputter coating.
Only the SEM specimen requires sputter-coating.
Only the TEM specimen must be dehydrated.
Only the SEM specimen must be dehydrated.
only sem specimen requires sputter-coating
Which of the following individuals argued in favor of the theory of spontaneous generation?
Francesco Redi
Louis Pasteur
John Needham
Lazzaro Spallanzani
john needman
Which of the following individuals is credited for definitively refuting the theory of
spontaneous generation using broth in swan-neck flask?
Aristotle
Jan Baptista van Helmont
, Page 4 of 167
John Needham
Louis Pasteur
louis pasteur
Which of the following scientists experimented with raw meat, maggots, and flies in an
attempt to disprove the theory of spontaneous generation?
Aristotle
Lazzaro Spallanzani
Antonie van Leeuwenhoek
Francesco Redi
francesco redi
Which of the following foods is NOT made by fermentation?
beer
bread
cheese
orange juice
orange juice
Who is considered the "father of Western medicine"?
Marcus Terentius Varro
Thucydides
WESTCOTT MICROBIO FINAL Exam NEWEST 450
QUESTIONS AND VERIFIED SOLUTIONS 2026-2027
LATEST UPDATE THIS YEAR
FINAL westcott microbio
Which would be the best choice for viewing internal structures of a living protist such as a
Paramecium?
a brightfield microscope with a stain
a brightfield microscope without a stain
a darkfield microscope
a transmission electron microscope
darkfield microscope
Which type of microscope is especially useful for viewing thick structures such as biofilms?
a transmission electron microscope
a scanning electron microscopes
a phase-contrast microscope
a confocal scanning laser microscope
an atomic force microscope
a confocal scanning laser microscope
,Page 2 of 167
.
Which type of microscope would be the best choice for viewing very small surface structures
of a cell?
a transmission electron microscope
a scanning electron microscope
a brightfield microscope
a darkfield microscope
a phase-contrast microscope
a scanning electron microscope
What type of microscope uses an annular stop?
a transmission electron microscope
a scanning electron microscope
a brightfield microscope
a darkfield microscope
a phase-contrast microscope
a phase contrast microscrope
What mordant is used in Gram staining?
crystal violet
safranin
,Page 3 of 167
acid-alcohol
iodine
iodine
What is one difference between specimen preparation for a transmission electron
microscope (TEM) and preparation for a scanning electron microscope (SEM)?
Only the TEM specimen requires sputter coating.
Only the SEM specimen requires sputter-coating.
Only the TEM specimen must be dehydrated.
Only the SEM specimen must be dehydrated.
only sem specimen requires sputter-coating
Which of the following individuals argued in favor of the theory of spontaneous generation?
Francesco Redi
Louis Pasteur
John Needham
Lazzaro Spallanzani
john needman
Which of the following individuals is credited for definitively refuting the theory of
spontaneous generation using broth in swan-neck flask?
Aristotle
Jan Baptista van Helmont
, Page 4 of 167
John Needham
Louis Pasteur
louis pasteur
Which of the following scientists experimented with raw meat, maggots, and flies in an
attempt to disprove the theory of spontaneous generation?
Aristotle
Lazzaro Spallanzani
Antonie van Leeuwenhoek
Francesco Redi
francesco redi
Which of the following foods is NOT made by fermentation?
beer
bread
cheese
orange juice
orange juice
Who is considered the "father of Western medicine"?
Marcus Terentius Varro
Thucydides
