Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 3R
DRAW IT Draw the bacterial shapes listed in (a), (b), and (c). Then draw the shapes in (d), (e), and (f), showing how they are special conditions of a, b, and c, respectively.
- a. spiral
- b. bacillus
- c. coccus
- d. spirochetes
- e. Streptobacilli
- f. staphylococci
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Gram negative bacteria lose crystal violet colour
after alcohol treatment because of:
Select one:
a. Thick lipid layer, and thick peptidoglycan layer O
b. Thin lipid content, and thin peptidoglycan layer O
c. Thick lipid layer, and thin peptidoglycan layer
d. Absence of peptidoglycan layer
e. Thin lipid layer, and thick peptidoglycan layer O
A bacterium has the following characteristics:∙ It adheres to the human intestinal lining using a feature that protects it from phagocytes, bacteriophages, and dehydration∙ It can survive being boiled∙ It contains no plasmids and relatively little peptidoglycanWhich of the following characteristics allows this bacterium to adhere to the intestinal lining?
Group of answer choices
A. fimbriae
B. pili
C. an endospore
D. a flagellum
Use the dichotomous key in Table 10.2 to identify a gram-positive, catalase (No bubble) coccus.
Table 10.2
1 Gram-positive
A. Catalase+
1. Acid from glucose.
2 Glucose-.....***
Micrococcus
B. Catalase-
1. Coccus..
2. Rod....
II. Gram-negative
A. Oxidase-
1. Acid from lactose
Lactobacillus
Citrobacter
Uses atric acid....... *.******. *******
a.
b. Citric acid-.
Escherichia
2. Lactose-
a. H2S produced
(1) Urease positive...
(2) Urease negative...
Proteus
Salmonella
B. Oxidase+
1. Rod...
....** ..........* ..
Neisseria
svuomopn
2.
. Coccus....* ****
.....* ....**
Neisseria
Pseudomonas
Staphylococcus
Streptococcus
A Moving to the next question prevents changes to this answer.
Chapter 4 Solutions
Microbiology: An Introduction
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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