A: The corneal reflex is an involuntary closing of the eyelids when the cornea is touched by a foreign object. The function of this reflex is to protect the eye from damage. Absence of a corneal reflex may indicate damage to the fifth and seventh cranial nerves, which mediate the reflex.
Cellular respiration is the process by which the chemical energy of food molecules is released and partially captured in the form of ATP. Carbohydrates, fats, and proteins can all be used as fuels in cellular respiration, but glucose is most commonly used as an example to examine the reactions and pathways involved.
The Reaction. During cellular respiration, oxygen and glucose (sugar) are transformed into carbon dioxide and water. Chemical energy in the form of adenosine triphosphate (ATP) is released during the reaction.lucose is oxidized during cellular respiration to form carbon dioxide. Oxidation releases the energy stored in the chemical bonds of the glucose molecule.