Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Question
Chapter 20, Problem 2MC
Summary Introduction
Introduction:
Prokaryotes synthesize specialized signaling molecules and secrete them on the surrounding environment. When a large number of prokaryotes are present in one place, the concentration of these molecules become high and it starts to move along the surface of the cells like slime. The molecules are attached to the receptors of the cells and may alter their function, a process known as quorum sensing.
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From the given option below what
is the community of prokaryotes
surrounded by slime and
adhering to a surface called,
a. plasmid.
b. flagellum.
c. endospore.
d. biofilm.
8:47 F
Which of the following bacteria would have the above cell boundary structure?
A. Mycobacterium
B.Clostridium
C. Mycoplasma
D. Borrelia
Bacterial endospores usually function in a. reproduction. b. survival.c. protein synthesis d. storage
Chapter 20 Solutions
Biology: Life on Earth (11th Edition)
Ch. 20 - The name of the process by which DNA is...Ch. 20 - Prob. 2MCCh. 20 - Prob. 3MCCh. 20 - 4. Viruses
a. are usually...Ch. 20 - Prob. 5MCCh. 20 - _______have peptidoglycan in their _____, but____...Ch. 20 - Prob. 2FTBCh. 20 - 3. Many prokaryotes use _____ to move about. Some...Ch. 20 - _____ bacteria inhabit environments that lack...Ch. 20 - 5. Prokaryotes reproduce by _____and may sometimes...
Ch. 20 - 6. The plant nutrient ammonium is produced by___...Ch. 20 - Prob. 7FTBCh. 20 - A virus consists of a molecule of ____or _____...Ch. 20 - Describe some of the ways in which prokaryotes...Ch. 20 - What are nitrogen-fixing bacteria, and what role...Ch. 20 - Describe some of the extreme environments in which...Ch. 20 - Prob. 4RQCh. 20 - What is conjugation? What role do plasmids play in...Ch. 20 - 6. Why are prokaryotes especially useful in...Ch. 20 - Describe the structure of a typical virus. How do...Ch. 20 - Describe some examples of how prokaryotes are...Ch. 20 - How do archaea and bacteria differ? How do...Ch. 20 - Prob. 1ACCh. 20 - Before the discovery of prions, many (perhaps...
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