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Which of the following can utilize the light source to promote growth of phototrophic microorganisms?

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in Environmental Biotechnology by (64.7k points)
Which of the following can utilize the light source to promote growth of phototrophic microorganisms?

(a) Algal blooms

(b) Photo bioreactor

(c) Stir tank bioreactor

(d) Zooplankton

This question was posed to me during an internship interview.

Query is from Microalgal Culture topic in portion Biotechnological Approaches of Microalgal Culture of Environmental Biotechnology

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Correct answer is (b) Photo bioreactor

For explanation: Photo bioreactor is a type of bioreactor that can utilize the light source to promote growth of phototrophic organisms. Algal blooms cause the reduction in nutrient quality of the water which affects the biological life in water, however, Stir tank bioreactor is not used in this process. And zooplanktons are secondary consumers and they usually do not promote growth of phototrophic microorganisms.

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