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The time to reach half of the concentration of the toxicant is a function of environmental concentration and _______________

(a) Membrane permeability rate

(b) Partial coefficient

(c) Rate of active transport

(d) Rate of active transport

I got this question in an online interview.

My question comes from The Process of Toxicants Uptake: Kinetic Aspect topic in portion Bioaccumulation of Toxicants of Environmental Biotechnology

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Correct option is (b) Partial coefficient

For explanation: The half time i.e. the time to reach half of the concentration of the toxicant can be expressed as a function of environmental concentration and Partial coefficient, 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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