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The soil humic substances make complexes with metal ions adversely affecting _______________

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The soil humic substances make complexes with metal ions adversely affecting _______________

(a) Membrane permeability rate

(b) Bioaccumulation

(c) Rate of active transport

(d) Rate of active transport

This question was posed to me in exam.

The question is from Factors Affecting Bioaccumulation of Xenobiotics in section Bioaccumulation of Toxicants of Environmental Biotechnology

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Best answer
Right choice is (b) Bioaccumulation

The best explanation: The soil humic substances make covalent bonds with metal ions reducing their availability in the soil, hence, adversely affecting bioaccumulation, whereas, Membrane permeability rate, rate of active transport, and rate of active transport are the factors that influence the uptake of toxicants during bio accumulation.

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