BIOELEMENTS; THE CHEMICAL ELEMENTS OF LIVING MATTER
نویسندگان
چکیده
منابع مشابه
Bioelements; the Chemical Elements of Living Matter
Among the 87 known elements less than one-half (namely 34) have been found to enter into living matter. Of these only 17 seem to be essential to life, and of these 17 not more than 4 elements form from 97 to 99 per cent of the living organism. In order to illustrate the importance of the different elements Fig. 1 and Tables I and II have been prepared, showing that some elements occur invariabl...
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چکیده ندارد.
15 صفحه اولThe living elements
In his Anatomie generale, Bichat compared his twenty-one organic elements to the thirty-three elements of chemistry Lavoisier had described in his Traite elementaire de chimie of 1789. The simple bodies of chemistry, he wrote, are caloric, light, hydrogen, oxygen, carbon, nitrogen, phosphorus, and so on. The simple bodies or tissues of anatomy are (1) the cellular membrane, (2) the nerves of th...
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Introduction.-Living systems consist of relatively few common chemical elements,' yet have unique properties which set them aside from the rest of matter: they are able to control their exchanges with the surrounding medium and to respond to changes therein; they can transform energy and metabolize matter; and especially they are capable of self-duplication. These remarkable properties, express...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1919
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.1.4.429