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.
Energy from respiration. Glucose is produced during photosynthesis. This energy is released from cells by a series of chemical reactions. This process is called respiration. Energy from respiration is used in reactions that produce different molecules.Examples of these molecules include starch and cellulose, which are polymers of glucose required by plant cells.his energy is released from cells by a series of chemical reactions. This process is called respiration. Energy from respiration is used in reactions that produce different molecules. Examples of these molecules include starch and cellulose, which are polymers of glucose required by plant cells.