Final answer:
During cellular respiration, four ATPs are produced, along with NADH, FADH2, carbon dioxide, and water. Hydrogen bonds tightly to oxygen because it is less electronegative than oxygen, which makes this bond polar and essential for cellular respiration.
Step-by-step explanation:
During cellular respiration, four total ATP are produced, and the other products formed when pyruvic acid is created are NADH and FADH2. The reason hydrogen bonds so tightly to oxygen during cellular respiration is because hydrogen is less electronegative than oxygen. As a result, oxygen attracts the shared electrons in the hydrogen-oxygen bond more strongly, which makes this bond quite polar leading to the tight association between the two atoms in the cellular process. Besides ATP, when one molecule of glucose is decomposed, other products include carbon dioxide (CO2) and water (H2O). These are produced through a series of reactions, where glucose is oxidized, and oxygen is reduced. Also, some energy is 'captured' in ATP, and the rest is released as heat in the body.