BMR is affected by many factors, such as exercise, stress, hormones, body temperature, age, and sex. Since oxidation of foods produces heat, this heat must be removed continuously or body temp would steadily rise. Stick with these major points and omit the details. Most of you have had or will have this in other classes. 25-14 summarizes much of what I want you to understand.
Reduction is the opposite of oxidation, it is the addition of electrons to a molecule.
Within a cell, oxidation and reduction reactions are always coupled, that is, whenever a substance is oxidized, another is almost simultaneously reduced. Excess glucose is also occasionally excreted in urine. This occurs by facilitated diffusion. Insulin increases the rate of facilitated diffusion into most cells. Phosphorylation traps glucose in the cell so that it cannot move back out.