Biology · PYQ NEET UG 2019(2)
हिन्दीOne 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:
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.