Biology NEET Previous Year Question Paper NEET 2019 Previous Year Question Paper Single Correct MCQ
Published on: August 21, 2026

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

A
Blue and red light
B
Violet and green light
C
Indigo and green light
D
Orange and yellow light

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Azotobacteris an aerobic bacterium, Cladophora is a green alga. T.W. Engelmann split light into its spectral components and detected that aerobic bacteria accumulated mainly in the region of blue and red light of the split spectrum.

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