Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

21. Principles of Disease

Endotoxin Causes Damage to the Host

Microbiology

21. Principles of Disease

Endotoxin Causes Damage to the Host

Previous problemNext problem

Struggling with Microbiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Lipid A is the toxic component of LPS. When pathogenic bacteria release Lipid A into the bloodstream the infected individual may experience septic shock. Lipid A represents _______.

A focal infection.

An exotoxin.

A systemic infection.

An endotoxin.

A and B.

C and D.

Previous problemNext problem

Verified step by step guidance

Understand the structure of Lipopolysaccharides (LPS): LPS is a major component of the outer membrane of Gram-negative bacteria, consisting of lipid A, a core polysaccharide, and an O-antigen.

Identify the role of Lipid A: Lipid A is the lipid component of LPS and is responsible for the toxic effects when released into the bloodstream, leading to septic shock.

Differentiate between exotoxins and endotoxins: Exotoxins are secreted by bacteria and can cause damage at distant sites, while endotoxins are part of the bacterial cell wall and are released upon cell lysis. Lipid A is classified as an endotoxin.

Clarify the concept of systemic infection: A systemic infection affects the entire body, often through the bloodstream. When Lipid A is released, it can lead to systemic effects such as septic shock.

Conclude the classification of Lipid A: Based on the definitions, Lipid A is an endotoxin and can cause systemic infection, aligning with options C and D.