1. Trace the flow of carbons throughout the pathways of glycolysis and cellular respiration and see where they enter and leave each set of reactions.
2. Do the same with hydrogens, and be sure to see that some of the hydrogens being carried off by NADH and FADH2 are coming from water and are not just the remnants of the glucose. Point out the need to put water on both sides of the general equation for cellular respiration to account for this entry of water into the process.
3. Point out the chemical relationships between photosynthesis and cellular respiration, and be sure to note that these are complementary processes that are part of the interrelatedness of all life and the cyclic renewal of reactants and products.
4. Compare the production of ATP through chemiosmotic phosphorylation in the mitochondrion and the chloroplast.
5. Discuss how the production and breakdown of ATP
must be cyclic and extremely rapid to allow the many chemical
reactions to occur. Consider what limits there would be on the
production of ATP (must have ADP and phosphate) and how recycling
of the materials must take place across the outer membrane of
the mitochondria.