G Atrazine is an herbicide that is commonly used to control weeds in corn, sorghum, and sugarcane fields. Atrazine is a six membered heterocyclic ring with nitrogen at positions 2, 4, and 6. Carbon 1 is single bonded to chlorine. Carbon 3 is single bonded to an N H group which is single bonded to C H 2, C H 3. Carbon 5 is single bonded to N H which is single bonded to a carbon single bonded to two methyl groups. Atrazine Atrazine binds at the Q B site of the D2 subunit, blocking electron flow from Q A to Q B , competing with Q B for the binding site on D2. Identify the statements inferred from this information.

Using a sensitive enzyme-linked immunosorbent assay, ... a mercapturic acid conjugate of atrazine /was identified/ as the major metabolite in the urine of applicators. Minor metabolites included N-dealkylated and N-deisopropyl atrazines. No di-dealkylated metabolites were identified, as they would have been expected to degrade during storage, and no hydroxylated conjugates were detected.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".