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BIO NMDCAT Ribonucleic acid (RNA)
nmdcat.online July 3, 2026

15. The basic chemical difference between a ribonucleoside and a ribonucleotide is the presence of a

A. Nitrogenous base
B. Pentose sugar
C. Phosphate group
✓
D. Hydroxyl group

📝 Explanation

A nucleoside consists only of a sugar and a base; adding a phosphate group converts it into a nucleotide.

📖 Additional Information

  • Nitrogenous base
  • Pentose sugar
  • Phosphate group
  • Hydroxyl group

A nucleoside consists only of a sugar and a base; adding a phosphate group converts it into a nucleotide.

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