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 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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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.
8) Name the three basic shapes of the bacteria in the picture to the right.
A
C
a.
b.
9) These bacteria in the picture to the left are called Staphylococcus aureus. Give two reasons
why is
called
aphylococcus.
a.
b.
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
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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- A bacterial arrangement in packets of eight cells is described as a __. a. micrococcus b. diplococcusc. tetrad d. sarcinaarrow_forwardwas used by Joseph Lister to clean wounds and surgical instruments: A.Antibiotics b.Chlorine water Carbonic acid dAntitoxins e. Carbolic acid Which one of the following does not apply to the bacterial glycocalyx? It is not responsible for virulency b .It allows the organism to resist drying C. It may allow an organism to resist phagocytosis d.It is composed of carbohydrates E. It is enclosed by the cell wallarrow_forwardIn the experiments below, different prokaryotic cells were grown in broth cultures in the presence or absence of an antibiotic (either vancomycin or polymixin) After 1 hour, cells were rinsed, and the percent of bacteria that survived was determined. According to the data, which experiment (A or B) was done with vancomycin and which was done with polymyxin? Explain your reasoning in both cases. 100 0 A Bacillus E. coli with antibiotic without antibiotic B Methanoge n 100 Bacillus E. coli Methanogenarrow_forward
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