Why is the results different in glucose and glucose-1 phosphate as substrate?

The difference in results between glucose and glucose-1 phosphate as substrates can be attributed to the different metabolic pathways the substrates enter. Glucose-1 phosphate bypasses the initial phosphorylation step in glycolysis, leading to differences in downstream metabolite concentrations and enzyme activities. This can impact overall rates of respiration, energy production, and metabolite levels compared to using glucose directly.