Question

Quorum sensing a. is the transfer of plasmid DNA from one bacterium to another. b. enables bacteria to form biofilms. c. is the formation of thick-walled dormant structures, called spores, under conditions unfavorable for growth. d. enables bacteria to switch from cellular respiration to fermentation when they sense that oxygen levels are low.

Name: Problem 7, Chapter 17: Discover Biology
Uploaded: 2021-09-11T08:28:15-08:00
Duration: 2 min 6 s
Channel: Sana Riaz
Description: Quorum sensing a. is the transfer of plasmid DNA from one bacterium to another. b. enables bacteria to form biofilms. c. is the formation of thick-walled dormant structures, called spores, under conditions unfavorable for growth. d. enables bacteria to switch from cellular respiration to fermentation when they sense that oxygen levels are low.

   Quorum sensing
a. is the transfer of plasmid DNA from one bacterium to another.
b. enables bacteria to form biofilms.
c. is the formation of thick-walled dormant structures, called spores, under conditions unfavorable for growth.
d. enables bacteria to switch from cellular respiration to fermentation when they sense that oxygen levels are low.

Discover Biology

Anu Singh-Cundy 6th Edition

Chapter 17, Problem 7

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Solved by Expert Sana Riaz

09/11/2021

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The transfer of plasmid DNA from one bacterium to another is called conjugation, not quorum sensing. b. Quorum sensing is a process that allows bacteria to communicate and coordinate their behavior, including the formation of biofilms. So, this option seems Show more…

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Quorum sensing a. is the transfer of plasmid DNA from one bacterium to another. b. enables bacteria to form biofilms. c. is the formation of thick-walled dormant structures, called spores, under conditions unfavorable for growth. d. enables bacteria to switch from cellular respiration to fermentation when they sense that oxygen levels are low.

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Key Concepts

Quorum Sensing

Quorum sensing is a process by which bacteria communicate with each other through the production, release, and detection of chemical signal molecules. This system allows bacteria to assess their population density and coordinate collective behaviors such as virulence, motility, and the production of extracellular substances in a synchronized manner.

Bacterial Biofilms

Bacterial biofilms are communities of bacteria that adhere to surfaces and produce a protective extracellular matrix. Quorum sensing plays a vital role in the formation and maturation of biofilms, as it regulates the expression of genes involved in adhesion and matrix production, enabling the community to establish and maintain complex, structured assemblies.

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