Lessons and experiments on scientific hygiene and temperance for elementary schoolchildren / by Helen Coomber.

Coomber, Helen.

Date:: 1914

Credit: Lessons and experiments on scientific hygiene and temperance for elementary schoolchildren / by Helen Coomber. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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$I SECTION XXXI Am.—Revision. Comparison of alcohol with true foods. What do ive need food for ? 1. To give us energy. What for ?—For heat to keep the Lody at the right temperature. For anything else ?—For movements inside and outside. 2 For building up new protoplasm or life substance. W hat is the use of protoplasm ?—The protoplasm buHds up muscles, blood, bone, and makes such things as saliva, and other diges- tite tube juices containing ferments. What foods give us energy Starchy, sugary, fatty, chietly ; nitrogen foods to certain extent. Why ?—They contain carbon and hydrogen, which can be oxidised. . , , ■ -n. t^^ (]\r.B.—Fatty foods give about double energy, weight tor weight, that starchy or nitrogen foods can give.) What foods can build uf 2^rotoplasm ?—Me&t, milk, bread, cheese, egg, fish. W]iy \—They contain nitrogen. . Can they give energy ?—Yes, for they also contain carbon and hydrogen, but not so much as such purely energy foods, as ^''Therefore, on which could you live longest 1-Xitrogen foods. Could you live on the purely energy-givuig foods No Why ?-We must have nitrogen. Why ?-For growth, body building. What must happen to all foods be ore they are of any use to the body ?-They must be digested, ^^hat fs digest'L ?-Making tl/e food soluble. * (Food molecules broken up into smaller molecules so that they can get mto the cell pToto^plasm lining the digestive tube and to other parts of$