Textbook Question
Identify the zoonotic disease:
a. HTLV lymphoma
b. Systemic candidiasis
c. Mucormycosis
d. Plague
e. Endocarditis
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Ch. 21 - Cardiovascular and Lymphatic Infections
Norman-McKay2nd EditionMicrobiology: Basic and Clinical PrinciplesISBN: 9780137661619
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Table of contents
- Ch. 1 - Introduction to Microbiology22
- Ch. 2 - Biochemistry Basics19
- Ch. 3 - Introduction to Prokaryotic Cells17
- Ch. 4 - Introduction to Eukaryotic Cells16
- Ch. 5 - Genetics25
- Ch. 6 - Viruses and Prions12
- Ch. 7 - Fundamentals of Microbial Growth20
- Ch. 8 - Microbial Metabolism16
- Ch. 9 - Principles of Infectious Disease and Epidemiology11
- Ch. 10 - Host Microbe Interactions and Pathogenesis19
- Ch. 11 - Innate Immunity24
- Ch. 12 - Adaptive Immunity22
- Ch. 13 - Immune System Disorders15
- Ch. 14 - Biomedical Applications: Vaccines, Diagnostics, Therapeutics, and Molecular Method14
- Ch. 15 - Antimicrobial Drugs18
- Ch. 16 - Respiratory System Infections16
- Ch. 17 - Skin and Eye Infections19
- Ch. 18 - Nervous System Infections12
- Ch. 19 - Digestive System Infections20
- Ch. 20 - Urinary and Reproductive System Infections10
- Ch. 21 - Cardiovascular and Lymphatic Infections15
Norman-McKay2nd EditionMicrobiology: Basic and Clinical PrinciplesISBN: 9780137661619Not the one you use?Change textbook
Chapter 21, Problem 17
Which Plasmodium life stage infects the liver?
a. Sporozoite
b. Merozoite
c. Gametocyte
d. Sexual stage
e. Vector stage
Verified step by step guidance1
Understand the life cycle of Plasmodium, the parasite responsible for malaria, which involves multiple stages including sporozoites, merozoites, gametocytes, and others.
Recall that the infection begins when an infected Anopheles mosquito bites a human and injects a specific Plasmodium stage into the bloodstream.
Identify that the stage injected by the mosquito that travels to and infects liver cells is called the sporozoite.
Recognize that after infecting liver cells, sporozoites develop into merozoites, which then enter the bloodstream to infect red blood cells.
Conclude that the correct Plasmodium life stage that infects the liver is the sporozoite.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Plasmodium Life Cycle
The Plasmodium parasite undergoes a complex life cycle involving stages in both the mosquito vector and the human host. Understanding these stages is essential to identify which form infects specific tissues, such as the liver or red blood cells.
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Sporozoite Stage
Sporozoites are the infectious form of Plasmodium transmitted by the mosquito bite. They travel through the bloodstream to the liver, where they invade liver cells and begin the exoerythrocytic phase of the parasite's development.
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Merozoite Stage
Merozoites are the stage that emerges from liver cells after replication and infects red blood cells. This stage is responsible for the symptomatic blood phase of malaria but does not infect the liver directly.
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Related Practice
Textbook Question
How does Rickettsia rickettsii damage blood vessels?
a. It blocks blood vessels and causes vessel inflammation.
b. It releases a toxin that destroys blood vessels.
c. It causes sepsis and septic shock, which damages blood vessels.
d. It avoids antibodies by binding to blood vessel surfaces.
e. It infects the epithelial cells of the vessels.
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Textbook Question
How does draining standing water reduce the incidence of malaria, dengue fever, yellow fever, Zika, and chikungunya?
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