All of the following bacteria release endotoxin EXCEPTGroup of answer choicesNeisseria meningitidis.Clostridium botulinum.Proteus vulgaris.Haemophilus influenzae.Salmonella typhi.
Question
All of the following bacteria release endotoxin EXCEPTGroup of answer choicesNeisseria meningitidis.Clostridium botulinum.Proteus vulgaris.Haemophilus influenzae.Salmonella typhi.
Solution
The bacteria that does not release endotoxin among the given options is Clostridium botulinum.
Here's why:
Endotoxins are part of the outer membrane of the cell wall of Gram-negative bacteria. All the bacteria listed in the question, except for Clostridium botulinum, are Gram-negative.
Clostridium botulinum is a Gram-positive bacterium. Gram-positive bacteria do not have an outer membrane and therefore do not release endotoxins. Instead, they release exotoxins.
So, the answer is Clostridium botulinum.
Similar Questions
All of the following organisms produce exotoxins EXCEPTGroup of answer choicesCorynebacterium diphtheriae.Clostridium tetani.Salmonella typhi.Staphylococcus aureus.Clostridium botulinum.
Which of the following is the substance referred to as endotoxin?Multiple choice question.HemolysinCoagulaseStaphylokinaseLipopolysaccharide
Which of the following statements correctly describes endotoxins?ANSWERGram-negative bacteria mainly release endotoxin when they die, although a small amount can be released as the bacteria divide.Endotoxins have a relatively low LD50.Endotoxins are released from actively dividing bacteria.Both Gram-positive and Gram-negative bacteria produce endotoxins.
Which of the following diseases has symptoms due to endotoxin production?
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