8.4.1 Cell Envelope and its Modifications

NCERT Class 11 Biology, section 8.4.1 · Shishya practice, NCERT-based

10 questions, picked at random. Each is Shishya's own, written from this part of the NCERT chapter and answer-checked — not NCERT's text and not a NEET previous-year question. Read the chapter first; the explanation shows after each answer.

Question 1 of 10

Medium

Statement I: Pili are long tubular structures made of a special protein. Statement II: In some bacteria, fimbriae help them attach to rocks in streams and to host tissues.

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