Everyone, let's take a look at the memory tool to help us remember reactions 1 to 5 of glycolysis. Memory tool 4 tells me, Phil invited Phyllis for baked cookies inside. Alright. So here, we're going to say Phil stands for phosphorylation, where we go from glucose to glucose 6-phosphate.
Remember, this consumes 1 ATP to do this. "Invited" is where we're going from glucose to fructose, which are isomers, so this is isomerization. Next, we have "Phyllis p", which stands for phosphorylation, which again requires us to consume another ATP. For reaction 4, "baked cookies" is where we have bond cleavage.
Remember, we cut the bond between carbons 3 and 4, that would give us Glyceraldehyde 6-phosphate and DHAP, which can isomerize between each other, so that would give us reaction 5. So just remember, this is the memory tool you can utilize to remember the types of reactions from 1 to 5 of glycolysis.