Moderate

Which one of the following molecules contains amino acids?

Correct answer: B. Collagen

  • A. Ascorbic acid
  • B. Collagen
  • C. Cellulose
  • D. Galactose

Explanation

Collagen is the correct answer because it is a protein, and proteins are made up of amino acids, which are their building blocks. Ascorbic acid is a vitamin, cellulose is a carbohydrate, and galactose is a sugar. None of these contain amino acids. Only proteins, such as collagen, are constructed from amino acids.

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About Biological Molecules

The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.

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