BROCK BIO.OF MICROORGANISMS-W/ACCESS
15th Edition
ISBN: 9781323776346
Author: MADIGAN
Publisher: PEARSON C
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Textbook Question
Chapter 8.3, Problem 1CR
Why does a one-step growth curve differ in shape from that of a bacterial growth curve?
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Chapter 8 Solutions
BROCK BIO.OF MICROORGANISMS-W/ACCESS
Ch. 8.1 - How does a virus differ from a cell?Ch. 8.1 - Why does a virus need a host cell?Ch. 8.1 - Compared with cells, what is unusual about viral...Ch. 8.1 - Once inside a host prokaryotic cell, what are the...Ch. 8.2 - Distinguish between a capsid and a capsomere. What...Ch. 8.2 - What is the difference between a naked virus and...Ch. 8.2 - What kinds of enzymes can be found within the...Ch. 8.2 - Where does the envelope surrounding animal viruses...Ch. 8.3 - What is packaged into capsids during maturation?Ch. 8.3 - Explain the term burst size.
Ch. 8.3 - Prob. 3MQCh. 8.3 - Why does a one-step growth curve differ in shape...Ch. 8.4 - What is meant by a viral titer?Ch. 8.4 - What is a plaque-forming unit?Ch. 8.4 - What is meant by the term plating efficiency?Ch. 8.4 - Describe the events that occur on an agar plate...Ch. 8.5 - How does attachment contribute to virushost...Ch. 8.5 - Prob. 2MQCh. 8.5 - Prob. 3MQCh. 8.5 - What is required for a bacteriophage T4 virion to...Ch. 8.6 - Prob. 1MQCh. 8.6 - Give one example each of T4 early, middle, and...Ch. 8.6 - What is required to package the T4 genome into its...Ch. 8.6 - Bacteriophage T4 lacks its own RNA polymerase. How...Ch. 8.7 - What is a lysogen and what is a prophage?Ch. 8.7 - How does DNA replication in lambda differ from...Ch. 8.7 - What commits lambda to the lytic versus the...Ch. 8.7 - What enzyme is required to form a prophage, and...Ch. 8.8 - Prob. 1MQCh. 8.8 - What is the difference between a persistent and a...Ch. 8.8 - Prob. 3MQCh. 8.8 - Why can it be said that the retrovirus genome is...Ch. 8 - What causes the viral plaques that appear on a...Ch. 8 - The promoters on genes encoding early proteins in...Ch. 8 - Under some conditions, it is possible to obtain...
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- In what phase of the bacterial growth curve do cells die at rapid rates?arrow_forwardWhy would cells that are vigorously growing when inoculated into fresh culture medium have a shorter lag phase than those that have been stored in a refrigerator?arrow_forwardWhy do some organisms grow within the zones of growth inhibition caused by the antibiotics?arrow_forward
- What are the defining characteristics of the exponential/log phase of the bacterial growth curve. Explain the culture conditions that arise that cause the phase to end. In different culture media, and the exact same starting inoculum, will the end of exponential/log occur at the same time? Why or why not? A graph or a drawing of the growth curve would help but is not essential to answer this question.arrow_forwardWhy does bacterial growth stop temporarily when the glucose supply in the medium is used up?arrow_forwardWould all microorganisms exhibit the same bacterial growth curve? Why?arrow_forward
- In growing E.coli, why is that (reasons) they do not grow after doubling time under 20 degrees celsius and under 37 degrees celsius, the number of colonies after doubling time has decreased?arrow_forwardList and define the four phases of growth in a bacterial growth curve.arrow_forwardWhy is nutrient broth considered as a universal growth medium for bacteria?arrow_forward
- Bacterial cells are most likely to be affected by antibiotics when they are in this phase of the bacterial growth curve.arrow_forwardWhen would you expect to see the E. coli produce the enzyme beta galactosidase if the growth media contained only glucose as an energy source?arrow_forwardWhat growth factor is often supplied for cultivation of fastidious bacterial pathogens?arrow_forward
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