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Multiple Choice
Endotoxins are typically associated with which type of organism?
A
Viruses
B
Fungi
C
Gram-positive bacteria
D
Gram-negative bacteria
Verified step by step guidance
1
Understand the concept of endotoxins: Endotoxins are toxins that are part of the outer membrane of the cell wall of Gram-negative bacteria. They are lipopolysaccharides (LPS) and are released when the bacteria die and the cell wall breaks apart.
Differentiate between Gram-positive and Gram-negative bacteria: Gram-positive bacteria have a thick peptidoglycan layer and lack an outer membrane, whereas Gram-negative bacteria have a thin peptidoglycan layer and an outer membrane containing lipopolysaccharides.
Recognize the role of endotoxins: Endotoxins can trigger immune responses in humans and animals, leading to symptoms such as fever and inflammation. They are significant in the context of bacterial infections and septic shock.
Identify the organisms associated with endotoxins: Since endotoxins are part of the outer membrane of Gram-negative bacteria, they are not associated with viruses, fungi, or Gram-positive bacteria.
Conclude the association: Based on the structure and characteristics of Gram-negative bacteria, endotoxins are typically associated with Gram-negative bacteria.