<prompt> Which of the following is not a phase 1 reaction in drug metabolism:OxidationReductionDeaminationConjugation  <response>: Ans. D. Conjugationa. Phase-1 Non-synthetic Rx: oxidationreductionhydrolysis- introducing or unmasking a polar functional groupb. Phase II Synthetic or Conjugation reactionc. Microsomal Conjugation- Enzyme is glucuronyl transferase.- e.g. Morphine, Paracetamol, Aspirin, Diazepam, Sulfonamidesd. Non-microsomal conjugation- N- acetyl conjugation cytosol N- acetyltransferase- Sulfate conjugation Cytosol- Amino-acid conjugation 