Amino acid

The bond that joins amino acids are called:

• Peptide Bonds
• Ester Bonds
• Glycosidic Linkages
• Phosphodiester Bonds

The number of amino acids used to produce proteins for all living things is:

• 20
• ∞
• 15
• 42

Which one is an acidic amino acid?

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Which one has more than one chiral center?

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Hydrophilic amino acid side chains are attracted by

• H20 molecules

• K molecules

• Na molecules

• Cl molecules

Amino acid is a compound which has at least one

• A. Amino group and one amide group

• B. Amino group and one hydroxyl group

• C. Amino group and one carboxyl group

• D. Hydroxyl group and one carbonyl group

Alanine has two pKa (2.35, 9.87). Isoelectronic point for alanine is at pH=6. Which one is the major form at alanine at pH=6?

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Select correct name for the amino acid shown

• 2-amino-3-methylbutanoic acid

• 2-amino-3-isopropylpropanoic acid

• 2-amino-4-methylpentanoic acid

• 2-aminohexanoic acid

Pick the correct "Non-polar" amino acid

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What is an amino acid , which contains a "Base" side chain ?

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