Publisher's Synopsis
Excerpt from Report of Preliminary Investigations on the Metabolism of Nitrogen and Carbon in the Human Organism: With a Respiration Calorimeter of Special Construction
Energy: Potential energy of (organic) compounds of feces, urine, and products of respiration and perspiration.
Kinetic energy given off from the body, as heat, external muscular work, and possibly in other forms.
The above statement is, however, incomplete in that it does not take into account the material which the body gains or loses during the experiment and the corresponding energy stored or transformed. This material consists mainly Of water, protein compounds, and fats, with smaller amounts of carbohydrates, mineral matters, and other compounds.
The above factors represent the gross income and outgo. The net income would include only the material which the body-actually util izes from food, drink, and air; that is, it represents the income of nutri ents, water, and energy consumed minus the unassimilated portion excreted in the feces, taking into account also the incompletely oxi dized matter in the urine. The net income of material is that which is taken into the circulation, builds and repairs tissue, and yields energy. The net income Of energy is the potential energy of this material plus the energy received with the food and drink in the form of heat.
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