[생리학]【A+】chemical

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Chemical Composition of the Body
Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
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Carbon, hydrogen, oxygen, and nitrogen make up the bulk of living matter, but there are other elements necessary for life
Table 2.2
Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
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Periodic Table of Elements
Periodic Table of Elements
o 92 가지 중 약 25 가지의 원소가 생명체에 필수적이다.
4가지 원소 - carbon (C), oxygen (O), hydrogen (H), and nitrogen (N) 생물 무게의 96% 차지
나머지 4%는 phosphorus (P), sulfur (S), calcium (Ca), potassium (K)로 구성된다.
Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
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Bulk elements - needed in large quantities.
[H, C, N, O, P, S, Cl, K, Ca, etc]
Trace elements - needed in small quantities.

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