Question:
Which among the following amino acids has the lowest molecular mass?
Which among the following amino acids has the lowest molecular mass?
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Glycine is the simplest and smallest amino acid, often considered the backbone of proteins.
Updated On: Feb 18, 2026
- Proline
- Aspartic acid
- Serine
- Glycine
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The Correct Option is D
Solution and Explanation
Step 1: Recall structure of amino acids.
Glycine is the simplest amino acid with only a hydrogen atom as its side chain.
Step 2: Compare molecular masses.
Proline, aspartic acid, and serine contain larger side chains and additional functional groups, increasing their molecular masses.
Step 3: Conclusion.
Therefore, glycine has the lowest molecular mass among the given amino acids.
Glycine is the simplest amino acid with only a hydrogen atom as its side chain.
Step 2: Compare molecular masses.
Proline, aspartic acid, and serine contain larger side chains and additional functional groups, increasing their molecular masses.
Step 3: Conclusion.
Therefore, glycine has the lowest molecular mass among the given amino acids.
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