BROCK BIOLOGY OF MICROORGANISMS 15TH
EDITION BY MADIGAN FULL CHAPTER
ACADEMIC REVIEW
©**********************Determine which outcome is LEAST likely
for a microorganism being motile.
A) avoidance of predation by bacteriovores
B) maintaining osmotic balance within a salt gradient
C) movement towards growth substrates
D) transfer of plasmids to progeny Answer:D) transfer of plasmids to
progeny
©***************The person who described the "wee animalcules"
was
A) Robert Hooke.
B) Antoni van Leeuwenhoek.
C) Louis Pasteur.
D) Ferdinand Cohn. Answer:B) Antoni van Leeuwenhoek.
, ©**********You have discovered a new microorganism, but you want
to know if it is a eukaryote or a prokaryote. To investigate this question
you prepare a slide with a simple stain and view it with a light
microscope with a 40X objective lens and 10X ocular lens. You also
prepare a control slide using Saccharomyces cerevisiae (a unicellular
eukaryote). You can see the cells on your control slide, but you don't see
cells when you look at your unknown microorganism. What can you
conclude from this experiment?
A) The experiment failed to visualize the organism because the stain
killed it.
B) Your new unknown microorganism is probably a virus.
C) The cells of the new unknown microorganism may be too small to
see with the objective and ocular lenses you used.
D) The new unknown microorganism is probably an archaeon.
Answer:C) The cells of the new unknown microorganism may be too
small to see with the objective and ocular lenses you used.
©*******************You are given an electron micrograph of a
bacterial cell. In the micrograph you can clearly see three thin layers of
different densities surrounding the cell. Based on the micrograph, you
can infer that this cell is ________ and would appear ________ after
application of the Gram stain procedure.
A) gram-positive / purple
B) gram-negative / pink
C) gram-positive / pink
D) gram-negative / purple Answer:B) gram-negative / pink
EDITION BY MADIGAN FULL CHAPTER
ACADEMIC REVIEW
©**********************Determine which outcome is LEAST likely
for a microorganism being motile.
A) avoidance of predation by bacteriovores
B) maintaining osmotic balance within a salt gradient
C) movement towards growth substrates
D) transfer of plasmids to progeny Answer:D) transfer of plasmids to
progeny
©***************The person who described the "wee animalcules"
was
A) Robert Hooke.
B) Antoni van Leeuwenhoek.
C) Louis Pasteur.
D) Ferdinand Cohn. Answer:B) Antoni van Leeuwenhoek.
, ©**********You have discovered a new microorganism, but you want
to know if it is a eukaryote or a prokaryote. To investigate this question
you prepare a slide with a simple stain and view it with a light
microscope with a 40X objective lens and 10X ocular lens. You also
prepare a control slide using Saccharomyces cerevisiae (a unicellular
eukaryote). You can see the cells on your control slide, but you don't see
cells when you look at your unknown microorganism. What can you
conclude from this experiment?
A) The experiment failed to visualize the organism because the stain
killed it.
B) Your new unknown microorganism is probably a virus.
C) The cells of the new unknown microorganism may be too small to
see with the objective and ocular lenses you used.
D) The new unknown microorganism is probably an archaeon.
Answer:C) The cells of the new unknown microorganism may be too
small to see with the objective and ocular lenses you used.
©*******************You are given an electron micrograph of a
bacterial cell. In the micrograph you can clearly see three thin layers of
different densities surrounding the cell. Based on the micrograph, you
can infer that this cell is ________ and would appear ________ after
application of the Gram stain procedure.
A) gram-positive / purple
B) gram-negative / pink
C) gram-positive / pink
D) gram-negative / purple Answer:B) gram-negative / pink
