Multiple choice Enzymes are regarded as the biocatalysts.Which among the following is not an enzyme? Phospholipase D Phosphatidylinositol Diacylglycerol kinase Phosphatidate phosphatase Reveal answer Fill a bubble to check yourself B Correct answer Explanation Phosphatidylinositol is a negatively charged phospholipid and a minor component in the cytosolic side of eukaryotic cell membranes.