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Lignin degradation doesn’t provide a primary carbon and energy for ___________

(a) maintenance metabolism

(b) mashing with Adhesives

(c) mashing with Fibers

(d) fungal growth

I have been asked this question in final exam.

The above asked question is from Organic Pollutants in portion Biodegradation of Organic Pollutants of Environmental Biotechnology

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Correct answer is (d) fungal growth

Explanation: Lignin degradation doesn’t provide a primary carbon and energy for fungal growth and hence, is a co-metabolic process, whereas, the conserved energy in the phosphanhydride bond of ATP is partially used for cell multiplication and maintenance metabolism during oxidative phosphorylation by proliferating bacteria, mashing with Adhesives or fibers is not used in Lignin degradation.

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