Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 10R
NAME IT What group of microbes is characterized by cells that form filaments, reproduce by spores, and have peptidoglycan in their cell walls?
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Students have asked these similar questions
Which of the following is NOT true about endospores?
O 1) Spores are resistant to heat, radiation, cold, and dessication.
O 2) One endospore germinates into one vegetative cell.
O
3) They are a method of reproduction for bacterial cells when growth conditions
are inhospitable.
O 4) Endospores are clinically significant in causing disease.
O 5) The endospore has a thick spore coat that protects it.
Mycoplasmas are bacteria that lack cell walls. On the basis of this structural feature, which statement concerning mycoplasmas should be true?
They are gram-negative.
They are subject to lysis in hypotonic conditions.
They lack a cell membrane as well.
They should contain less cellulose than do bacteria that possess cell walls.
They possess typical prokaryotic flagella.
Mycoplasmas are pleomorphic bacteria. How do the unique structural characteristics of mycoplasmas relate to their bacterial morphology?
Mycoplasmas have a low G + C genome content.
Mycoplasmas appear Gram negative when a Gram stain is performed.
Mycoplasmas lack a cell wall.
Mycoplasmas form colonies with a fried-egg appearance.
Chapter 4 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 4 - DRAW IT Diagram each of the following flagellar...Ch. 4 - Endospore formation is called (a) _____. It is...Ch. 4 - DRAW IT Draw the bacterial shapes listed in (a),...Ch. 4 - Match the structures in column A to their...Ch. 4 - Why is an endospore called a resting structure? Of...Ch. 4 - Compare and contrast the following a. simple...Ch. 4 - Prob. 7RCh. 4 - Starch is readily metabolized by many cells, but a...Ch. 4 - Match the characteristics of eukaryotic cells in...Ch. 4 - NAME IT What group of microbes is characterized by...
Ch. 4 - Which of the following is not a distinguishing...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which of the following statements best describes...Ch. 4 - Which of the following is false about fimbriae? a....Ch. 4 - Which of the following pairs is mismatched? a....Ch. 4 - Which of the following pairs is mismatched? a....Ch. 4 - You have isolated a motile, gram-positive cell...Ch. 4 - The antibiotic amphothericin B disrupts plasma...Ch. 4 - How can prokaryotic cells be smaller than...Ch. 4 - The smallest eukaryotic cell is the motile alga...Ch. 4 - Two types of prokaryotic cells have been...Ch. 4 - In 1985, a 0.5-mm cell was discovered in...Ch. 4 - When E. coli cells are exposed to a hypertonic...Ch. 4 - Clostridium botulinum is a strict anaerobe; that...Ch. 4 - A South San Francisco child enjoyed bath time at...Ch. 4 - Live cultures of Bacillus thuringiensis (Dipel)...
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- Which of the following statement/s is/are true about gram negative bacteria Cell wall has thin peptidoglycan layer Cell wall lipid content is very low Lipopolyscharride layer is present All of the abovearrow_forwardOnce these pathogens enter the host the difference in environmental conditions signals for them to germinate and turn into growing cells. Compare Inhalation anthrax (Bacillus anthracis) to Tetanus (Clostridium tetani). Besides endospores used in transmission, what is a simple explanation to help explain how each microbe survives and grows in each location?arrow_forwardGive the common name of a eukaryotic microbe that is unicellular,walled, nonphotosynthetic, nonmotile, and bud-forming.arrow_forward
- You are a physician working in a hospital. Your patient is a 65-year-old individual who has been living on the street. Their symptoms include trouble breathing, weakness, and most recently coughing up blood. When gram stained, the bacterium shows no color and most of the antibiotics are not reducing the infection. After reviewing the information from the last physician, you prescribe Isoniazid. Select all of the answers that are correct. Mycolic acid is present in fungal cells Mycolic acid is a waxy substance that can repel many molecules An organism that has mycolic acid has to have access to oxygen and grows very slowly. If there is not gram stain then there is no bacteria present Isonazid targets and destroys mycolic acid. ►arrow_forwardOne major difference in the envelope structure between gram positive bacteria and gram-negative bacteria is the presence or absence of a cytoplasmic membrane. True or false?arrow_forwardWhich of these types of microbes is smallest? yeast spirochete mycoplasma protozoaarrow_forward
- Which microorganism is differentiated based on the spores it is able to produce? Algae Fungi Helminths Protozoaarrow_forwardwhat is the correct answer?arrow_forwardWhich of the following is most susceptible to antimicrobial agents? mycobacteria bacterial endospores protozoan cysts vegetative bacteriaarrow_forward
- What are all the descriptive terms used for microbes that live in different environments or the terms used for the environments that they live in? What does each term mean? In what types of environments are each microbial group found?arrow_forwardOne of the types of structures on this list is NOT part of the reproductive cycle of a microbe. Identify that one. bacterial spores fungal spores yeast buds protozoal cystsarrow_forwardDiseases that involve biofilm-producing bacteria are of serious concern. They are not as easily treated compared with those involving free-floating (or planktonic) bacteria. Explain three reasons why biofilms can be more pathogenic.arrow_forward
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