Q. Bio-accumulation in the living tissues can happen when the chemicals accumulated crosses the physical barrier.

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Q. The toxicant has to cross several sub cellular structures for the ________

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Q. In Zooplankton, bio-accumulation can occur through direct surface absorption from aqueous medium.

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Q. Which of the following factors doesn’t influence the direct uptake of toxicants during bio-accumulation?

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Q. Size of organism is not a deciding factor for bioaccumulation.

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Q. The solubility of the toxicant through the membrane is dependent on the strength of the bonds.

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Q. Lipophilic compounds can enter the tissues of terrestrial plants through ___________

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Q. Bio accumulation through roots gets absorbed in the root hair zone.

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Q. Aquatic algae ingest metals by formation of coordination complexes.

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Q. Which of the following phases doesn’t lead to bio accumulation in aquatic organism?

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Q. The initial phase of uptake of toxicant is very fast.

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Q. The toxicant accumulation can occur by direct absorption from the medium and ________

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Q. In young organism, steady state can be achieved very fast.

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

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Q. Which of the following factor doesn’t influence the rate of Bioaccumulation by food?

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Q. At plateau of bio accumulation, rate of uptake is equal to rate of elimination.

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Q. Sometimes organism metabolizes the accumulated toxicant to facilitate its own growth.

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Q. What does ∆t depicts in the given formula: C = Cₘₐₓ Δt/B + Δt?

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Q. Upon which of the following factors the accumulation kinetics depend?

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Q. Beyond a certain concentration range the accumulation kinetics is not altered.

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