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Questions and Answers
What are extracellular toxins commonly referred to as?
What are extracellular toxins commonly referred to as?
- Antitoxins
- Endotoxins
- Exotoxins (correct)
- Cytotoxins
Which of the following is a characteristic of endotoxins?
Which of the following is a characteristic of endotoxins?
- They are secreted into the surrounding environment.
- They are heat-labile proteins.
- They are part of the bacterial cell wall. (correct)
- They cause severe allergic reactions.
What distinguishes exotoxins from endotoxins?
What distinguishes exotoxins from endotoxins?
- Endotoxins are only found in Gram-positive bacteria.
- Exotoxins are produced inside the bacterial cell.
- Exotoxins are released into the surrounding environment. (correct)
- Endotoxins are proteins that act as enzymes.
Which of the following statements is true regarding bacterial toxins?
Which of the following statements is true regarding bacterial toxins?
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In which situation would endotoxins generally pose a greater risk?
In which situation would endotoxins generally pose a greater risk?
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Study Notes
Extracellular Toxins
- Commonly referred to as exotoxins
Endotoxins
- Characterized by being lipopolysaccharide (LPS) components of the outer membrane of Gram-negative bacteria
Exotoxins vs. Endotoxins
- Exotoxins are proteins secreted by bacteria, while endotoxins are part of the bacterial cell wall
Bacterial Toxins
- Exotoxins are highly potent and can cause specific symptoms, even in small amounts
- Endotoxins are less potent than exotoxins but can cause a strong inflammatory response
Endotoxin Risk
- Endotoxins pose a greater risk during bacterial infections due to their release when bacteria die or are lysed
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