grade twelve bio; cellular energy ??

Carbohydrates (such as sugars) are chemically broken down by various enzymes within a cell to produce ATP energy (cellular energy). Without sugars, ATP would not get produced.

In order for energy to be produced, you need a nutrient source (sugar - glucose), water, and oxygen. ATP, energy carrying molecules (NADH), and water need to be produced to support cellular metabolism (this can vary though, but you get the idea). PGAL is a chemical compound that occurs as an intermediate in several central metabolic pathways of all organisms. Fructose 6-phosphate lies within the glycolysis metabolic pathway and is produced by isomerisation of glucose 6-phosphate. It is in turn further phosphorylated to fructose-1,6-bisphosphate. Oxaloacetate is an intermediate of the citric acid cycle. It forms upon oxidation of L-malate, catalysed by malate dehydrogenase, and reacts with Acetyl-CoA to form citrate, catalysed by citrate synthase.

D. Which substance in C would you consider for breakfeast Huh?

I guess fructose-phosphate, since it's an energy source.

thankk youu