1. One of the first five steps in glycolysis is the conversion of fructose 6-phosphate (Fru-1-P) to fructose 1,6-bisphosphate (Fru-1,6-BP). The enzyme that accomplishes this task is phosphofructokinase- a. What characterizes a reaction that is catalyzed by a kinase enzyme and what substrate and cofactor are required? b. What molecule acts as the phosphate donor in the phosphofructokinase reaction? c. Draw the structure of the molecule, which is the answer for part b and label all of the phospho- anhydride bonds in the structure. 2. What trioses are obtained when fructose 1,6 bisphosphate splits in two three-carbon pieces in the reaction catalyzed by the enzyme, aldolase? Draw the structures of the two products. 3. Draw out the mechanism of the type I (animals and plants) aldolase reaction: