Nucleic acids are formed of units called:
Correct answer: B. Nucleotides
- A. Amino acids
- B. Nucleotides
- C. Citric acids
- D. Isoprenoid units
Explanation
b) Nucleotides:This is the correct answer. Nucleic acids, such as DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), are made up of repeating units called nucleotides. A nucleotide consists of three components: a nitrogenous base (adenine, thymine, cytosine, guanine, or uracil), a sugar molecule (ribose in RNA or deoxyribose in DNA), and a phosphate group. These nucleotides are linked together to form a long chain, which is the structure of nucleic acids.
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About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
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