This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'Endotoxin is pa of the outer poion of the cell wall of - \nSelect and explain. \nA. Gram-positive bacteria, B. Gram-negative bacteria, C. Candida albicans, D. All of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: Endotoxins are heat stable lipopolysaccharides. Forms an integral pa of the cell wall of gram-negative bacteria. Do not diffuse into the surrounding medium. Reference : Anathanarayan & paniker's 9th edition, pg no:74 <\\p>", 'role': 'assistant'}]