Podcast
Questions and Answers
What are the two smallest amino acids?
What are the two smallest amino acids?
Glycine and alanine
Which amino acids have a branched-chain structure?
Which amino acids have a branched-chain structure?
- Aspartate and glutamate
- Cysteine and methionine
- Serine and threonine
- Valine, leucine, and isoleucine (correct)
Which amino acids contain an OH group in their side chain?
Which amino acids contain an OH group in their side chain?
- Valine, leucine, and isoleucine
- Cysteine and methionine
- Aspartate and glutamate
- Serine and threonine (correct)
Which amino acids contain a sulfur atom in their side chain?
Which amino acids contain a sulfur atom in their side chain?
Which amino acids contain acidic groups in their side chain?
Which amino acids contain acidic groups in their side chain?
Flashcards
Aliphatic amino acids
Aliphatic amino acids
Amino acids with a straight or branched carbon chain.
Glycine
Glycine
The smallest amino acid, with a single hydrogen atom as its side chain.
Alanine
Alanine
An amino acid with a methyl group (CH3) as its side chain.
Branched-chain amino acids
Branched-chain amino acids
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Serine
Serine
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Threonine
Threonine
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Aromatic amino acids
Aromatic amino acids
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Phenylalanine
Phenylalanine
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Tyrosine
Tyrosine
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Tryptophan
Tryptophan
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Study Notes
Amino Acid Classification
- Aliphatic amino acids include glycine (smallest), alanine, valine, leucine, and isoleucine.
- Some have branched chains.
- Others have side chains with hydroxyl (-OH) groups (e.g., serine, threonine).
- Some have sulfur atoms in their side chains (e.g., cysteine, methionine).
- Some have acidic side chains (e.g., aspartate, glutamate).
- Some have amide side chains (e.g., asparagine, glutamine).
- Some have basic side chains (e.g., arginine, lysine).
Cyclic Amino Acids
- Aromatic ring structures are found in phenylalanine, tyrosine, and tryptophan.
- Heterocyclic structures include histidine (a basic amino acid) and proline (an imino acid).
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Description
Test your knowledge on the classification of amino acids, including their structures and characteristics. This quiz covers aliphatic, cyclic, and side chain properties of various amino acids. Perfect for students of biochemistry or molecular biology!
