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STD 11 - 2. Biology classification — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 2. Biology classification1 Mark
MCQ
Nostoc is known to perform
  • A
    Only photosynthesis
  • ✓
    Photosynthesis and nitrogen fixation simultaneously
  • C
    Only nitrogen fixation
  • D
    Either photosynthesis or nitrogen fixation at a time
✓

Answer

Correct option: B.
Photosynthesis and nitrogen fixation simultaneously
b
(b)Because they have photosynthetic lamellae for photosynthesis and heterocyst for -fixation.

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