Waste products are nitrogenous wastes excreted from the metabolic processes. Uric acid is a waste product that uses maximum energy to produce. Thus, option B is correct.
What are nitrogenous wastes?
Nitrogenous wastes are nitrogen-based products eliminated from the body in various forms like ammonia, urea, and uric acid. Ammonia has one nitrogen and is very toxic.
Urea has two nitrogen and is less toxic. On the other hand, uric acid has four nitrogens and complex molecules although is non-toxic but requires the maximum amount of energy to eliminate four nitrogen.
Therefore, uric acid needs maximum energy.
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