In resolving a longstanding dispute, the Food and Drug Administration has announced that it will rescind approval for three of the four arsenic drugs that had been used in animal feeds at the request of the companies that market them.he issue of arsenic in food has drawn increased public scrutiny since research last year by Consumer Reports found substantial arsenic levels in rice. Arsenic residue in rice often comes from the water used to grow it, and poultry feces are widely used as fertilizer for a variety of crops.
a net-like structure in the cytoplasm of animal cells (especially in those cells that produce secretions), stack of membranes in the cell that modifies, sorts, and packages proteins from the endoplasmic reticulum. packaging products for shipping.
Membrane proteins are proteins that interact with biological membranes. They are one of the common types of protein along with soluble globular proteins, fibrous proteins, and disordered proteins.They are targets of over 50% of all modern medicinal drugs.It is estimated that 20â30% of all genes in most genomes encode membrane proteins.hey are one of the common types of protein along with soluble globular proteins, fibrous proteins, and disordered proteins. They are targets of over 50% of all modern medicinal drugs. It is estimated that 20â30% of all genes in most genomes encode membrane proteins.