What is the function of pili in bacteria?

What is the function of pili in bacteria?
  1. motility
  2. attachment to host tissues and rocks
  3. protection from the host immune system
  4. nutrient absorption

Solution

Pili are elongated tubular structures made of a special protein and are known to help attach the bacteria to rocks in streams and also to the host tissues. They do not play a role in motility or protection from the host immune system.

Asked in: NCERT

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