They are polymers of units called nucleotides:
Correct answer: D. Nucleic acids
- A. Amino acids
- B. Nucleosides
- C. Fatty acids
- D. Nucleic acids
Explanation
Nucleic acids are polymers made up of monomeric units called nucleotides. Each nucleotide consists of a sugar, a phosphate group, and a nitrogenous base. DNA and RNA are the two primary types of nucleic acids, responsible for genetic information storage and transfer. In contrast, amino acids form proteins, fatty acids are components of lipids, and nucleosides are components of nucleotides, lacking the phosphate group essential for forming the nucleic acid backbone.
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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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