Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 33.7, Problem 1CR
Summary Introduction
Roundworms, tapeworms, and flukes are collectively called helminths. Helminths include large, multicellular
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One of the most characteristic symptoms of malaria is the alternation of attacks (involving a cold phase, a hot phase, and a sweating phase) with periods of 1 or 2 days of no or few fevers. Given the life cycle of Plasmodium what is the best explanation for this pattern:
When free in the blood, merozoites release chemicals that directly cause body responses. Merozoites appear in coordinated “waves”, which explains the cycling attacks
Merozoites entering the red blood cells generate a strong response from the red blood cells, which stimulates a massive immune response
Attack phase correlates with simultaneous bursting of infected red blood cells, releasing thousands or millions of merozoites. This triggers massive immune response, resulting in symptoms
Plasmodium generates a constant accumulation of irritants in the blood, mostly residues from digesting hemoglobin . Once the amount reaches a critical level, these trigger a massive immune response
Water-related activities
such as swimming
underwater, diving.
or other water sports
can result in water
going up the nose.
Promitosis
Amebae penetrate
the nasal mucosa
Trophozoite
Flagellated form
Amebae migrate to the brain via
the olfactory nerves causing
primary amebic meningoencephalitis
(PAM) in healthy individuals
Vector borne parasite
Facultative parasite
Obligate parasite
Ectoparasite
Trophozoites in CSF and
brain tissue
Flagellated forms
occasionally in CSF
Cyst
A=Infective Stage
Diagnostic Stage
CDC
SAFER-HEALTHIER PEOPLE"
Observe this life cycle for Naegleria fowleri, an amoebic protozoan also called "the
brain eating amoeba". N. fowleri usually completes its entire life cycle by eating
bacteria (e.g., in pond water). What is an appropriate term for its relationship with
humans?
Label the stages of the Trypanosoma cruzi life cycle as well as the form of the parasite in each stage.
Drag the appropriate labels to their respective targets..
Chapter 33 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 33.1 - Prob. 1MQCh. 33.1 - Prob. 2MQCh. 33.1 - Prob. 3MQCh. 33.1 - Prob. 1CRCh. 33.2 - Give an example of a superficial, a subcutaneous,...Ch. 33.2 - Prob. 2MQCh. 33.2 - Prob. 1CRCh. 33.3 - Prob. 1MQCh. 33.3 - Prob. 2MQCh. 33.3 - Prob. 1CR
Ch. 33.4 - What symptoms of giardiasis would suggest that...Ch. 33.4 - How does one contract a case of trichomoniasis? A...Ch. 33.4 - What is unusual about the oocysts of...Ch. 33.4 - Prob. 1CRCh. 33.5 - Which stages of the Plasmodium life cycle occur in...Ch. 33.5 - What are the natural reservoirs and vectors for...Ch. 33.5 - Prob. 3MQCh. 33.5 - Prob. 1CRCh. 33.6 - Prob. 1MQCh. 33.6 - Prob. 2MQCh. 33.6 - How are sleep patterns altered in cases of African...Ch. 33.6 - Prob. 1CRCh. 33.7 - How does the pathogen causing schistosomiasis...Ch. 33.7 - From what source are most cases of human...Ch. 33.7 - Prob. 1CRCh. 33 - Prob. 1AQCh. 33 - Prob. 2AQCh. 33 - Prob. 3AQCh. 33 - Prob. 4AQ
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