The structure used for sexual contact between bacteria is/are:
Correct answer: D. Pili
- A. Flagella
- B. Plasmid
- C. Mesosome
- D. Pili
Explanation
Pili (singular: pilus) are hair-like appendages on the surface of bacteria. They are involved in various functions, including attachment to surfaces and bacterial motility. However, some bacteria also possess a specific type of pilus called a sex pilus or F pilus. Sex pilus is involved in a process called bacterial conjugation, which is a form of sexual contact between bacteria. During conjugation, a donor bacterium transfers a plasmid (often containing antibiotic resistance genes) to a recipient bacterium through the sex pilus. Therefore, the correct option for the structure used for sexual contact between bacteria is D) Pili.
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About Kingdom Prokaryotae
Kingdom Prokaryotae includes bacteria and cyanobacteria, organisms with no membrane-bound nucleus or membrane-bound organelles. It covers their cell wall, capsule, flagella, plasmids, forms of nutrition, binary fission, useful and harmful roles, and the differences between prokaryotic cells and eukaryotic cells.
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