Essays on Environmental Toxicology

Full title- A COMPARISON OF THE INHIBITORY EFFECTS OF METAL IONS

Enzymes are an essential part for the functioning of the human system. Most of the enzymes require binding of metal ions and other non-protein components for their appropriate functioning. Such non proteins, which facilitate the functioning of enzymes, are called cofactors. The cofactors can be an organic cofactor as Thymine Pyrophosphate (TPP), Flavin Adenine Dinucleotide (FAD), Nicotinamide Adenine dinucleotide (NAD); or inorganic cofactors like metal ions, Mg2+, Cu2+, Mn2+, Zn2+ and Iron-sulphur clusters. When the enzyme is bound to a cofactor, ready to carry out its function, it is known as a ‘Holoenzyme.' An enzyme without a ...

Analysis of Temporal Trends in Persistent Organic Pollutants in

Analysis of Temporal Trends in Persistent Organic Pollutants in Air, Water, Food Chain and Humans in United States Introduction Persistent Organic Pollutants (POPs) are synthetic organic chemicals, which are persistent in environment. Its long-range transport leads to global pollution. These materials are lipophilic and they are accumulated in the food chain as they are found in fish and marine mammals (Arnot & Gobas, 2006). These toxic materials are spread in environment through different human activities. They pose adverse effects on air, water, food chain and humans. In United States, over the last two decades there has been a continuous ...