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Biology · PYQ NEET UG 2019(2)

हिन्दी

One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of:

  1. A
    Blue and red light
  2. B
    Violet and green light
  3. C
    Indigo and green light
  4. D
    Orange and yellow light
View Answer & Solution

Correct answer · Option A

Blue and red light

Explanation

T.W. Engelmann's experiment showed that photosynthesis occurs maximum in blue and red regions of the light spectrum, where aerobic bacteria (Azotobacter) accumulated.

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