BIOLOGY 206 OpenStax Microbiology Test Bank-
Chapter 9: Microbial Metabolism
,BIOLOGY 206 OpenStax Microbiology Test Bank- Chapter
9: Microbial Metabolism
Chapter 9: Microbial Growth
* = Correct answer
Multiple Choice
1. Bacteria most commonly reproduce using which of the following methods?
A. binary fission*
B. budding
C. meiosis
D. mitosis
2. Which structure separates new daughter cells in binary fission?
A. the crescent
B. the division septum*
C. the FtsZ
D. the spindle apparatus
3. Which of the following is another term for generation time?
A. doubling time*
B. growth rate
C. mitotic index
D. replication index
4. Which of the following best describes culture density?
A. another term for a batch culture
B. the number of cells per unit volume*
C. the reproducible pattern of growth
D. the total number of cells
5. Which of the following is the correct order of phases of growth in the growth curve of a
batch culture?
A. death/decline phase ⟶ lag phase ⟶ log phase ⟶ stationary phase
B. lag phase ⟶ log phase ⟶ stationary phase ⟶ death/decline phase *
Page 1 of 18
, BIOLOGY 206 OpenStax Microbiology Test Bank- Chapter
9: Microbial Metabolism
C. log phase ⟶ lag phase ⟶ stationary phase ⟶ death/decline phase
D. stationary phase ⟶ log phase ⟶ lag phase ⟶ death/decline phase
6. Which of the following is not a common way bacteria divide?
A. binary fission
B. budding
C. fragmentation
D. sporulation*
7. Which of the following is the term for free-living bacteria?
A. biofilms
B. pathogenic
C. planktonic*
D. sessile
8. Which of the following is not a reactive oxygen species?
A. atmospheric oxygen*
B. peroxides
C. singlet oxygen
D. superoxide
9. Which of the following best describes FtsZ?
A. a cytoskeletal protein in eukaryotic cells
B. the protein that assembles the Z ring, which forms a divisome before division by binary
fission*
C. the protein that forms within the central structure of the new cell wall and septum that
separates the daughter cells during binary fission
D. the protein that gives structure to spirochetes, contributing to their unusual shape and
motility
10. Which microbial pathogen has an unusually long doubling time?
Page 2 of 18
Chapter 9: Microbial Metabolism
,BIOLOGY 206 OpenStax Microbiology Test Bank- Chapter
9: Microbial Metabolism
Chapter 9: Microbial Growth
* = Correct answer
Multiple Choice
1. Bacteria most commonly reproduce using which of the following methods?
A. binary fission*
B. budding
C. meiosis
D. mitosis
2. Which structure separates new daughter cells in binary fission?
A. the crescent
B. the division septum*
C. the FtsZ
D. the spindle apparatus
3. Which of the following is another term for generation time?
A. doubling time*
B. growth rate
C. mitotic index
D. replication index
4. Which of the following best describes culture density?
A. another term for a batch culture
B. the number of cells per unit volume*
C. the reproducible pattern of growth
D. the total number of cells
5. Which of the following is the correct order of phases of growth in the growth curve of a
batch culture?
A. death/decline phase ⟶ lag phase ⟶ log phase ⟶ stationary phase
B. lag phase ⟶ log phase ⟶ stationary phase ⟶ death/decline phase *
Page 1 of 18
, BIOLOGY 206 OpenStax Microbiology Test Bank- Chapter
9: Microbial Metabolism
C. log phase ⟶ lag phase ⟶ stationary phase ⟶ death/decline phase
D. stationary phase ⟶ log phase ⟶ lag phase ⟶ death/decline phase
6. Which of the following is not a common way bacteria divide?
A. binary fission
B. budding
C. fragmentation
D. sporulation*
7. Which of the following is the term for free-living bacteria?
A. biofilms
B. pathogenic
C. planktonic*
D. sessile
8. Which of the following is not a reactive oxygen species?
A. atmospheric oxygen*
B. peroxides
C. singlet oxygen
D. superoxide
9. Which of the following best describes FtsZ?
A. a cytoskeletal protein in eukaryotic cells
B. the protein that assembles the Z ring, which forms a divisome before division by binary
fission*
C. the protein that forms within the central structure of the new cell wall and septum that
separates the daughter cells during binary fission
D. the protein that gives structure to spirochetes, contributing to their unusual shape and
motility
10. Which microbial pathogen has an unusually long doubling time?
Page 2 of 18
