21. Principles of Disease

What part of lipopolysaccharide (LPS) is the dangerous portion of the endotoxin during bacterial infections?

What type of bacteria create endotoxins?

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 _______.  

An endotoxin:

The Opa gene is used to identify this endotoxin-producing bacterium that grows well in the high- CO₂ conditions inside phagocytes.

Endotoxin is responsible for symptoms caused by which of the following organisms?

a. N. meningitidis

b. S. pyogenes

c. L. monocytogenes

d. C. tetani

e. C. botulinum

Which of the following is/are features of endotoxic shock? Select all that apply.

a. Fever

b. Confusion

c. Hypertension

d. Bradycardia

e. Decreased respiratory rate

f. Achiness

Endotoxin, also known as ___________, is part of the outer (wall) membrane of Gram-negative bacteria.