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18 April, 14:06

Which two macromolecules contain nitrogen?

O A. Proteins and nucleic acids

O B. Lipids and vitamins

O C. Carbohydrates and proteins

O D. Carbohydrates and lipids

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  1. 18 April, 14:27
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    Answer: Option A) Proteins and nucleic acids

    Explanation:

    Proteins are composed of several amino acids with positively charged amino groups in their side chain. These amino groups (NH2) have nitrogen atoms in them.

    Nucleic acids, as well have nitrogen atoms in the nitrogenous bases present in their structure. E. g DNA and RNA has Adenine molecules with two nitrogen atoms in its structures
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