Which of the following bacterial component contains "dipicolinic acid"?
- Endospore
- Capsule
- Flagella
- Pifi
The Correct Option is A
Solution and Explanation
The question asks which bacterial component contains "dipicolinic acid." Let's analyze the options provided:
- Endospore: Endospores are a type of dormant cell formed by certain bacteria that are highly resistant to environmental stressors, such as heat, desiccation, and chemicals. A key component of endospores is dipicolinic acid, which forms a complex with calcium ions, contributing to the heat resistance and stability of the structure.
- Capsule: A capsule is a protective layer that surrounds some bacterial cells. Its primary components are polysaccharides or proteins, rather than dipicolinic acid.
- Flagella: Flagella are tail-like structures used for bacterial motility. They are primarily composed of the protein flagellin, not dipicolinic acid.
- Pili (or Fimbriae): These are hair-like appendages on the surface of some bacteria, used for adhesion. They are mainly composed of pilin protein, not dipicolinic acid.
Based on the explanation above, the correct answer is that endospores contain dipicolinic acid.
Conclusion: The bacteria component that contains "dipicolinic acid" is the endospore. Other options like capsule, flagella, and pili do not contain dipicolinic acid as they have different compositions and functions.
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