Relationship between amino acid and protein is similar to one found between:
Correct answer: C. Nucleotides and nucleic acid
- A. Glucose and fructose
- B. Nucleosides and nucleic acid
- C. Nucleotides and nucleic acid
- D. Purines and pyrimidines
Explanation
The correct answer is Option C: Nucleotides and nucleic acid. Nucleotides are the monomeric units that polymerize to form nucleic acids, just as amino acids polymerize to form proteins. Each nucleotide consists of a nitrogenous base, a sugar, and one or more phosphate groups, allowing them to link together to form the long chains characteristic of DNA and RNA. Other options, such as glucose and fructose, or purines and pyrimidines, do not represent a similar building block-to-polymer relationship.
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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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