Brock Biology of Microorgan. -Access
Brock Biology of Microorgan. -Access
14th Edition
ISBN: 9780321943736
Author: MADIGAN
Publisher: PEARSON
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Chapter 5, Problem 1RQ
Summary Introduction

The prokaryotes, eukaryotes, and Archaea replicate, grow, or divide to survive and prolong their generations. During the cell division, the one cell is divided into two daughter cells and this process is repeated numerous times, which is called as cell growth.

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Most of the microbes like bacteria undergo cell division through binary fission, where one cell is divided into two daughter cells. During cell division, the cells elongate double their size, and the cell shows a balanced growth in equally producing each daughter cell with all cell organelles and components. The septum is a key process that divides the cells into two daughter cells after the cell growth. A septum is formed between the two adjacent daughter cells that pulls the cell wall and cytoplasm membrane in the opposite directions. The septum is found until the two daughter cells are completely individual.

The key molecular processes that occurs during the cell growth and division are:

  • Energy transformation reactions.
  • Synthesizes of small molecules leading to macromolecules formation.
  • Provides various cofactors and coenzymes for enzymatic reactions.

The key molecular process is synthesizes of monomers into macromolecules. These macromolecules accumulate in the cytoplasm and form new cellular structures such as cell wall, flagella, cytoplasmic membrane, ribosomes, and enzyme complexes. This leads to the process of cell division.

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Chapter 5 Solutions

Brock Biology of Microorgan. -Access

Ch. 5.4 - What is transpeptidation and why is it important? Ch. 5.5 - What is a semilogarithmic plot and what...Ch. 5.5 - Prob. 2MQCh. 5.5 - Prob. 3MQCh. 5.6 - In which phase of the growth curve do cells divide...Ch. 5.6 - Prob. 2MQCh. 5.6 - Prob. 3MQCh. 5.7 - How do microorganisms in a chemostat differ from...Ch. 5.7 - What happens in a chemostat if the dilution rate...Ch. 5.7 - Do pure cultures have to be used in a chemostat?Ch. 5.8 - What are some of the problems that can arise when...Ch. 5.8 - Using microscopic techniques, how could you tell...Ch. 5.9 - Why is a viable count more sensitive than a...Ch. 5.9 - Describe how you would dilute a bacterial culture...Ch. 5.9 - Prob. 3MQCh. 5.10 - List two advantages of using turbidity as a...Ch. 5.10 - Describe how you could use a turbidity measurement...Ch. 5.11 - How does a hyperthermophile differ from a...Ch. 5.11 - Prob. 2MQCh. 5.11 - E. coli can grow at a higher temperature in a...Ch. 5.12 - Prob. 1MQCh. 5.12 - What molecular adaptations to cold temperatures...Ch. 5.13 - Which phylogenetic domain includes species with...Ch. 5.13 - How does the membrane structure of...Ch. 5.13 - What is Taq polymerase and why is it important?Ch. 5.14 - How does the concentration of H+ change when a...Ch. 5.14 - What terms are used to describe organisms whose...Ch. 5.15 - What is the aw of pure water? What is the lower...Ch. 5.15 - What are compatible solutes, and when and why are...Ch. 5.16 - How does an obligate aerobe differ from a...Ch. 5.16 - How does a reducing agent work? Give an example of...Ch. 5.16 - How does Superoxide dismutase or superoxide...Ch. 5.17 - Why is heat an effective sterilizing agent?Ch. 5.17 - What steps are necessary to ensure the sterility...Ch. 5.17 - Distinguish between the sterilization of...Ch. 5.18 - Define D10 and explain why the killing dose for...Ch. 5.18 - Prob. 2MQCh. 5.18 - Prob. 3MQCh. 5.19 - Distinguish between the antimicrobial effects of...Ch. 5.19 - Describe how the minimum inhibitory concentration...Ch. 5.19 - Distinguish between a sterilant, a disinfectant,...Ch. 5 - Prob. 1RQCh. 5 - Describe the role of proteins present at the...Ch. 5 - Prob. 3RQCh. 5 - Describe how new peptidoglycan subunits are...Ch. 5 - Prob. 5RQCh. 5 - Describe the growth cycle of a population of...Ch. 5 - How does a chemostat regulate growth rate and cell...Ch. 5 - How does a viable count differ from a total count?Ch. 5 - How can turbidity be used as a measure of cell...Ch. 5 - Prob. 10RQCh. 5 - Prob. 11RQCh. 5 - Concerning the pH of the environment and of the...Ch. 5 - How does a halophile maintain positive water...Ch. 5 - Prob. 14RQCh. 5 - Prob. 15RQCh. 5 - Contrast the terms thermal death time and decimal...Ch. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - Describe the procedure for obtaining the minimum...Ch. 5 - Prob. 21RQCh. 5 - A medium was inoculated with 5 106 cells/ml of...Ch. 5 - Escherichia coli but not Pyrolobus fumarii will...Ch. 5 - In which direction (into or out of the cell) will...
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