How would you explain the connection between glucose entering the body and energy created by the body to a friend, using your new biochemistry knowledge?

How would you explain the connection between glucose entering the body and energy created by the body to a friend, using your new biochemistry knowledge?

First stage is cellular respiration which happens within the cytoplasm. In  this stage enzymes interact with glucose and oxidizes it by taking away some of its electrons. . Two electrons and one proton are added onto a  coenzyme NAD+ to produce the NADH molecule. Glycolysis produces NADH, 2 pyruvate molecules and 2 ATP for every glucose molecule broken down. . The second stage is The citric acid cycle which only uses the Pyruvate molecules that came from the Glycolysis. The citric acid cyles takes place in mitochondria and only takes place if oxygen is present at the time (Aerobic metabolism). When pyruvate molecules enter the cell's mitochondria. Carbon dioxide is released which changes the molecules composition. Enzymes interact with these changed molecules and as did the glucose the pyruvate is oxidized losing some of its electrons. NADH and FADH2 molecules are formed. The citric acid cycle produces carbon dioxide, NADH, FADH2 and energy in the form of ATP. The NADH and FADH2 molecules move onto the 3rd stage oxidative phosphorylation stage. This stage as was the citric acid cycle is present in the the cell's mitochondria. The electrons that are oxidized from the NADH and the FADH2 are used in the electron transport chain which helps synthesize 34 ATP per glucose molecule absorbed which is the energy the body mostly uses to perform its processes.  Sources: mpbell, Mary K, and Shawn O Ferrell. Biochemistry. N.p.: Brooks/Cole, 2011. N. pag. Print.