Which of the following can accumulate in lipids?a.Mercury and DDTb.Copperc.Copper and DDTd.Detergents

To determine which substances can accumulate in lipids, we need to review the concept of bioaccumulation and the chemical properties of the given substances.

1. Understanding Bioaccumulation: Bioaccumulation refers to the accumulation of substances, such as pesticides or heavy metals, in an organism. These substances are often lipophilic, meaning they tend to be stored in fatty tissues.

2. Analyzing the Options:

   • a. Mercury and DDT: Both mercury (a heavy metal) and DDT (a pesticide) are known to accumulate in fatty tissues and can have toxic effects on living organisms.
   • b. Copper: Copper is a metal that can also accumulate but is less likely to accumulate in lipids as compared to organic compounds.
   • c. Copper and DDT: While DDT accumulates in lipids, copper generally does not.
   • d. Detergents: Most detergents are soluble in water and do not significantly accumulate in lipids.

3. Conclusion: The best answer is a. Mercury and DDT, as both are known for their capacity for lipid accumulation.

Final Answer

a. Mercury and DDT