Brock Biology of Microorganisms Chapter 5 Exam Questions With Correct Answers
4 views 0 purchase
Course
Brock Biology of Microorganisms
Institution
Brock Biology Of Microorganisms
Brock Biology of Microorganisms Chapter 5
Exam Questions With Correct Answers
Which of the following is/are transferred to daughter cells during cell division?
a. Genomic DNA, the blueprint for everything the cell needs
b. Individual genes and enzymes to later be brought together to form the ge...
Brock Biology of Microorganisms Chapter 5
Exam Questions With Correct Answers
Which of the following is/are transferred to daughter cells during cell division?
a. Genomic DNA, the blueprint for everything the cell needs
b. Individual genes and enzymes to later be brought together to form the genome
c. Chromosome and enzymes to immediately begin cellular metabolism
d. Chromosome, proteins, and all other cellular constituents - answer✔D
2. Which is most abundant and active in divisome complexes?
a. FtsZ
b. DNA replication forks
c. MinCD
d. MreB - answer✔A
3. The process by which two cells arise from one is known as
a. Conjugation
b. Binary fission
c. Meiosis
d. Mitosis - answer✔B
4. A bacterium that lacks the MreB gene will have a ____ shape
a. Bacillus
b. Coccoid
d. Vibrio - answer✔B
5. The time interval required for the formation of two cells from one is called the
a. Generation time
b. Growth time
c. Growth rate
d. Division rate - answer✔A
6. Enumerating cells in a biofilm is especially challenging for
a. Microscopic direct counting
b. Measuring turbidity
c. Viability counts with spread plating
d. Microscopic direct county, measuring turbidity, and viability counts with spread plating -
answer✔D
7. The time between inoculation and the beginning of growth is usually called the
a. Lag phase
b. Log phase
c. Dormant phase
d. Death phase - answer✔A
8. Optical density and viable cell concentration are LEAST proportional to each other during
a. Lag phase
b. Exponential growth phase
c. Stationary phase
d. Death phase - answer✔D
9. To determine viable cell counts of a heat-sensitive bacterial isolate, which cell counting
method would be best to avoid?
a. Spread-plate method
b. Pour-plate method
c. Live staining and direct counting with a microscope
d. Both spread- and pour-plate methods - answer✔B
10. Bacteria that are able to grow in humans and cause disease have likely evolved to be
a. Psychrophiles
b. Mesophiles
c. Theromphiles
d. Hyperthermophiles - answer✔B
11. Where would it be best to isolate bacteria from to study the mechanism of the sodium motive
force?
a. Human gut
b. Hot springs
c. Soda lakes
d. Volcanoes - answer✔C
12. An agar plate for counting colonies and maximizing statistical validity should ideally contain
a. 1 to 100 colonies
b. 50 to 100 colonies
c. 30 to 300 colonies
d. 100 to 1000 colonies - answer✔C
14. The number of colonies obtained in a plate count does not depend on the
a. Inoculum volume
b. Size of the colonies
c. Type of culture medium
d. Incubation time - answer✔B
15. Cell density in a chemostat is controlled by
a. The concentration of the limiting nutrient
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller sirjoel. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
