Moderate

Phosphorus is an essential component of one of the following biological molecules:

Correct answer: B. Nucleic acids

  • A. Amino acids
  • B. Nucleic acids
  • C. Carbohydrates
  • D. None

Explanation

Phosphorus is part of the phosphate backbone of DNA and RNA, making it essential to nucleic acids. It is not a basic structural element of amino acids or carbohydrates in the same general sense.

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