This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'True about clostridium tetani - \nSelect and explain. \nA. It is gram +ve, B. Drum stick appearance, C. Obligate Anaerobe, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans:D.)All Clostridium tetani It is a rod-shaped, anaerobic species of pathogenic bacteria, of the genus Clostridium. Like other Clostridium genus species, it is Gram-positive, and its appearance on a gram stain resembles tennis rackets or drumsticks. C. tetani is found as spores in soil or in the gastrointestinal tract of animals. C. tetani produces a potent biological toxin, tetanospasmin, and is the causative agent of tetanus, a disease characterized by painful muscular spasms that can lead to respiratory failure and, in up to 10% of cases, death. C. tetani is a rod-shaped, obligate anaerobe. During vegetative growth, the organism cannot survive in the presence of oxygen, is heat-sensitive and exhibits flagellar motility.', 'role': 'assistant'}]