OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Organic compounds make up living things. They ALWAYS contain both ____ and hydrogen
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oxygen
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iron
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aluminum
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carbon
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Explanation:
Detailed explanation-1: -Many organic compounds are formed from chains of covalently-linked carbon atoms with hydrogen atoms attached to the chain (a hydrocarbon backbone). This means that all organic compounds have in common the presence of carbon atoms and hydrogen atoms.
Detailed explanation-2: -Proteins, polysaccharides, nucleic acids (DNA and RNA) are the broader classes of organic compounds present in living organisms.
Detailed explanation-3: -Hydrocarbons are a class of chemicals that contain only hydrogen and carbon atoms.
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