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Biomolecules — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBiomolecules3 Marks
Question
What is the difference between a nucleotide and nucleoside? Give two examples of each with their structure.
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Answer

Difference between Nucleotide and Nucleoside.
Nucleotide
Nucleoside
The chemical composition of nucleotide consists of a phosphate group, a sugar and a nitrogenous base.
A nucleoside has a chemical composition that consists of a sugar and a base without the phosphate group.
They are one of the major causes forcancer causing agents to this very day.
They are used as agents in medicine that are primarily used against viruses and cancer causing agents.
Some of the major examples of nucleotides are adenosine, guano sine etc.
Some of the key examples of nucleosides are the same as nucleotides only with the addition of phosphate groups.

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