Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 27, Problem 4TY
Place the following steps in the correct order, according to Koch’s postulates:
I. Determine if pure cultures of bacteria cause disease symptoms when introduced to a healthy host.
II. Determine if disease symptoms correlate with presence of a suspected pathogen.
III. Isolate the suspected pathogen and grow it in pure culture, free of other possible pathogens.
IV. Attempt to isolate pathogen from second-infected hosts.
- a. II, III, IV, I
- b. II, IV, III, I
- c. Ill, II, I, IV
- d. II, III, I, IV
- e. I, II, III, IV
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A patient with a diagnosis of "Staphylococcal pneumonia" was admitted to the clinic. For successful etiological treatment we should select an effective antibiotic. For this purpose, was recommended to determine the antibioticogram of the pathogen.
1. What method can be used to determine antibiotic sensitivity?
2. The principle of the method and accounting for results.
the following are the steps, listed in random order, for utilizing koch's postulates. what should be the second step out of the four listed?
a. a microorganism is found to be present in every case of a disease.
b. the same microbe discovered previously is isolated from the purposely infected host
c. the pathogen is isolated and grown in pure culture
d. the same disease results after isolated organism is inoculated into healthy host
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2. What does resistance mean?
3. Who is affected by resistance?
4. What if the resistance problem is not solved?
5. Describe the structure of the bacterium (its parts)
6. Can bacteria change? explain
7. Why do Bacteria communicate, what is the purpose?
8. Explain how a bacterium achieves its resistance.
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10. Is this use in animals good practice?
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14. Should antibiotics be used against viruses? explain.
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Chapter 27 Solutions
Biology
Ch. 27.2 - Core Skill: Connections Look ahead to Section...Ch. 27.2 - Prob. 2CSCh. 27.2 - Structure and Movement Concept Check: Does the...Ch. 27.2 - Prob. 3CSCh. 27.3 - Prob. 1CCCh. 27.5 - Prob. 1EQCh. 27.5 - Prob. 2EQCh. 27 - Which of the following features is common to...Ch. 27 - The bacterial phylum whose members typically...Ch. 27 - Gram-staining is a procedure that microbiologists...
Ch. 27 - Place the following steps in the correct order,...Ch. 27 - What ecological role do cyanobacteria play? a....Ch. 27 - Prob. 6TYCh. 27 - Prob. 7TYCh. 27 - Prob. 8TYCh. 27 - Prob. 9TYCh. 27 - Prob. 10TYCh. 27 - Prob. 1CQCh. 27 - Prob. 2CQCh. 27 - Prob. 3CQCh. 27 - Prob. 1COQCh. 27 - Prob. 2COQ
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