MCB 100 EXAM 2 QUESTIONS AND COMPLETE ANSWERS
1. The are the largest known group of archaea. methanogens
2. In which of the following methods of budding
prokaryotic re- production does the parental
cell remain intact after the reproduction
event to continue the process?
the bottom of a swamp
3. Which of the following is NOT a typical habitat
for an extremophile?
Palisades and V-shapes
4. What type of arrangement occurs when bacilli Submit
divide by snapping division?
5. Endospores may be produced
when
nutrients are scarce.
6. The most common form of reproduction binary fission
among prokaryotes is (budding/binary
fission/snapping divi- sion).
7. A bacterial species with spherical cells that staphylococci
have ran- dom planes of cell division will form
which of the fol- lowing arrangements?
8. What are flexible, spiral-shaped bacteria called? spirochetes
9. The majority of prokaryotes are capable of or ab-
forming endospores. sence of
high salt
10. Rhizobium is important agriculturally because concentra
it sup- plies to plants such as peas and tions.
beans.
11. Halophiles grow equally well in the presence
, MCB 100 EXAM 2 QUESTIONS AND COMPLETE ANSWERS
false
fixed nitrogen
false
, MCB 100 EXAM 2 QUESTIONS AND COMPLETE ANSWERS
12. Which of the following is NOT a property of Lactobacil- They are
members of the
li? high G + C Gram-positive
bacteria.
13. What type of arrangement forms when Staphylococci
multiple planes of division occur
randomly in cocci?
cell wall composition,
14. Which of the following characteristics cytoplasmic membrane
distinguish the archaea from the bacteria? lipids, and rRNA se-
quences
15. Which of the following is CORRECT about the prokary- They are
commonly found
otes known as deeply branching bacteria? in acidic, anaerobic condi-
tions.
16. In which of these ways do archaea differ from
Archaea lack peptidogly- can
bacte- ria? in their cell walls.
17. Which of the following correctly describes the function Endospores
are produced
of bacterial as resting stages of
endospores? the bacterium that can
survive inhospitable
conditions.
18. Are Clostridium botulinum vegetative cells required to No,
foodborne botulism
be present for foodborne botulism to is caused by the botu-
occur? linum toxin produced
by the bacteria, not the
, MCB 100 EXAM 2 QUESTIONS AND COMPLETE ANSWERS
bac- teria themselves.
19. How are patients typically infected with listeriosis? Contaminated food
or
drink
20. During pregnancy.
1. The are the largest known group of archaea. methanogens
2. In which of the following methods of budding
prokaryotic re- production does the parental
cell remain intact after the reproduction
event to continue the process?
the bottom of a swamp
3. Which of the following is NOT a typical habitat
for an extremophile?
Palisades and V-shapes
4. What type of arrangement occurs when bacilli Submit
divide by snapping division?
5. Endospores may be produced
when
nutrients are scarce.
6. The most common form of reproduction binary fission
among prokaryotes is (budding/binary
fission/snapping divi- sion).
7. A bacterial species with spherical cells that staphylococci
have ran- dom planes of cell division will form
which of the fol- lowing arrangements?
8. What are flexible, spiral-shaped bacteria called? spirochetes
9. The majority of prokaryotes are capable of or ab-
forming endospores. sence of
high salt
10. Rhizobium is important agriculturally because concentra
it sup- plies to plants such as peas and tions.
beans.
11. Halophiles grow equally well in the presence
, MCB 100 EXAM 2 QUESTIONS AND COMPLETE ANSWERS
false
fixed nitrogen
false
, MCB 100 EXAM 2 QUESTIONS AND COMPLETE ANSWERS
12. Which of the following is NOT a property of Lactobacil- They are
members of the
li? high G + C Gram-positive
bacteria.
13. What type of arrangement forms when Staphylococci
multiple planes of division occur
randomly in cocci?
cell wall composition,
14. Which of the following characteristics cytoplasmic membrane
distinguish the archaea from the bacteria? lipids, and rRNA se-
quences
15. Which of the following is CORRECT about the prokary- They are
commonly found
otes known as deeply branching bacteria? in acidic, anaerobic condi-
tions.
16. In which of these ways do archaea differ from
Archaea lack peptidogly- can
bacte- ria? in their cell walls.
17. Which of the following correctly describes the function Endospores
are produced
of bacterial as resting stages of
endospores? the bacterium that can
survive inhospitable
conditions.
18. Are Clostridium botulinum vegetative cells required to No,
foodborne botulism
be present for foodborne botulism to is caused by the botu-
occur? linum toxin produced
by the bacteria, not the
, MCB 100 EXAM 2 QUESTIONS AND COMPLETE ANSWERS
bac- teria themselves.
19. How are patients typically infected with listeriosis? Contaminated food
or
drink
20. During pregnancy.
