Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 4.4, Problem 4TQ
Summary Introduction
To review:
The reason behind 20 minutes generation time of Escherichia coli at 37oC (degree Celsius).
Introduction:
Reproduction of each microorganism is followed by several internal processes. The cell undergoing division takes a definite time to complete the processes that are occurring within the cell. The effective time for the internal processes of cellular reproduction is affected by a range of factors.
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make a graph out of this
t = time of growth of bacteria in mins
y = number of bacteria
Which is false among A-E regarding symbiotic nitrogen fixation?
A) O Initiation of the symbiosis involves communication between the plant and bacteria
B)O Within the plant, the bacteria differentiate into N2 fixing bacteroids
C) O The N2-fixation process is sensitive to oxygen.
D) O The bacteria infect the root of the plant via an infection thread.
E) O None are false; A-E are all true,
Which of the following pair is NOT a match?
O Chlamydias - chalamedya trichomatis (causes STD that can lead to blindness)
O Epsilon Protobacteria - Helicobacter pylori (human pathogen causing stomach
ulcer)
O Spirochetes - Treponea pallidum (causes Syphillis)
O Alpha Protobacteria – Rhizobium sp. (N2 fixation in legumes)
O Gram positive bacteria – Oscillatoria (filamentous phytoplankton)
Chapter 4 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 4.1 - Prob. 1TQCh. 4.2 - Prob. 1TQCh. 4.2 - Prob. 2TQCh. 4.3 - Prob. 1TQCh. 4.3 - Prob. 2TQCh. 4.3 - Prob. 3TQCh. 4.3 - Prob. 4TQCh. 4.4 - Prob. 1TQCh. 4.4 - Prob. 2TQCh. 4.4 - Prob. 3TQ
Ch. 4.4 - Prob. 4TQCh. 4.4 - Prob. 5TQCh. 4.4 - Prob. 6TQCh. 4.4 - Prob. 7TQCh. 4.4 - Prob. 8TQCh. 4.6 - Prob. 1TQCh. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Prob. 1TQCh. 4 - Prob. 2TQCh. 4 - Prob. 3TQCh. 4 - Prob. 4TQCh. 4 - Prob. 5TQCh. 4 - Prob. 6TQCh. 4 - Prob. 7TQ
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