GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The elements:C H O N typically represent what proportion of an organism’s element make up?
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78%
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68%
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96%
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82%
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Explanation:
Detailed explanation-1: -Four elements-carbon (C), oxygen (O), hydrogen (H), and nitrogen (N)-make up 96% of living matter. Most of the remaining 4% of an organism’s weight consists of phosphorus (P), sulfur (S), calcium (Ca), and potassium (K).
Detailed explanation-2: -Answer and Explanation: Carbon is the only element that is found in all organic compounds.
Detailed explanation-3: -Further, the acronym CHONPS may be used which is: CHON (Carbon, hydrogen, oxygen, nitrogen and phosphorus) plus (sulfur), which make up 99% of all living systems.
Detailed explanation-4: -CHON is a mnemonic acronym for the four most common elements in living organisms: carbon, hydrogen, oxygen, and nitrogen.
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