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STD 11 - 3. Plant kingdom — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 3. Plant kingdom1 Mark
MCQ
Spirogyra cells contain
  • A
    One chloroplast and one pyrenoid
  • B
    One or more chloroplast, each with one pyrenoid
  • ✓
    One or more chloroplast, each with many pyrenoids
  • D
    None of the above
✓

Answer

Correct option: C.
One or more chloroplast, each with many pyrenoids
c
(c) Spirogyra cell contain one $(e.g., S. sahnii)$ to more ($sixteen$ in S. $rectispora$) ribbon-shaped spirally coiled chloroplasts $(wavy\, margin)$ each with a row of many pyrenoids (seat of $synthesis$ and $storage$ of starch).

Connected together by a narrow ridge.

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