... into the body without chemical change. Before the organic foods can be absorbed, they have to undergo digestion. This is the process by which organic compounds, capable of acting as foods, are so altered that they may be absorbed. ...

... the surface of their sometimes fluid, sometimes solid organic food substance, envelope themselves in a colored slime. The ...

... Or if the soil be deficient either in organic food, or in one or other of those inorganic ... a great degree independent of the soil for organic food—and the large amount of absorbing surface in ...

... is relatively less abundant than that of the organic food substances. A considerable part of these minerals is ... similation. It is evident that the supply of organic food ma- terials in the seed is limited, and ...

... to be hungry ; hungry it is, for the organic food of plants; for left to itself, its first ... the atmosphere. These we have seen are the organic food of plants. It combines also with foetid gases. ...

... mineral salts. The first three foodstuffs constitute the Organic Food group. The last two include the remaining chemical ... the home. FATS The second member of the organic food group, and one which is almost as widely ...

... extent of the large intestine's capacity to absorb organic food-stuffs is still somewhat uncertain; it is generally ... is unknown. Summary of the Uses of the Organic Food-Principles and their Metabolism The organic food-stuffs ...

... body. It can be ob- tained only from organic foods; there is no substitute for the ele- ment ... Carbohydrates Carbohydrates are Hydrates Combined with Water-in Organic Food Elements. The carbohydrates are foods which contain an ...

... them as building materials, since it is from organic foods that all the tissues of the animal body ... it is only through the breaking down of organic foods in respiration that life and activity in the ...

... and examples of proteins, fats, carbohydrates. Origin of organic food substances and manufacture in plants Character- istics and ... are foods classified? 2. Name the divisions of organic foods. 3. How do carbohydrates differ in their food ...