Nucleotide Components
Easychemistry
A nucleotide is composed of:
Select the correct option:
Solution
Incorrect! Answer:
Sugar + base + phosphate
- Nucleic Acid Building Blocks: Nucleotides are the monomers of DNA and RNA.
- Component 1: Nitrogenous Base (Purines like A, G; or Pyrimidines like C, T, U).
- Component 2: Pentose Sugar (Ribose in RNA or 2-Deoxyribose in DNA).
- Component 3: Phosphate Group, typically attached to the C-5' hydroxyl of the sugar.
- Summary:
- Base + Sugar = Nucleoside
- Nucleoside + Phosphate = Nucleotide.
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About This Question
- Subject
- chemistry
- Chapter
- biomolecules
- Topic
- nucleotide components
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Sugar + base + phosphate
- Nucleic Acid Building Blocks: Nucleotides are the monomers of DNA and RNA.
- Component 1: Nitrogenous Base (Purines like A, G; or Pyrimidines like C, T, U).
- Component 2: Pentose Sugar (Ribose in RNA or 2-Deoxyribose in DNA).
- Component 3: Phosphate Group, typically attached to the C-5' hydroxyl of the sugar.
- Summary:
- Base + Sugar = Nucleoside
- Nucleoside + Phosphate = Nucleotide.
This easy difficulty chemistry question is from the chapter biomolecules, covering the topic of nucleotide components. It appeared in the 2025 exam.
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