Like DNA _ is a polymer of ribonucleotides.
Correct answer: D. RNA
- A. ATP
- B. NAD
- C. FAD
- D. RNA
Explanation
The correct answer is RNA. RNA, or ribonucleic acid, is a polymer composed of ribonucleotides, just as DNA is a polymer of deoxyribonucleotides. RNA is crucial for various biological functions, including acting as a messenger between DNA and the protein synthesis machinery. The other options, ATP, NAD, and FAD, are not polymers; instead, they are individual molecules or coenzymes that play different roles in cellular processes. ATP is a single nucleotide used for energy transfer, NAD is a coenzyme involved in electron transport, and FAD is a coenzyme involved in redox reactions.
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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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