Amino Acids and Proteins

What are peptides?

• polymer of α-amino acids

• polymer of β-amino acids

• polymer of carboxylic acids

• polymer of amides

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

The chemical bonds between amino acids in the primary structure of proteins are

• Hydrogen bonds

• Disulfide bonds

• Peptide bonds

• Ester bonds

Which statement is correct?

• All amino acids in nature are in L forms

• All amino acids are chiral

• In alpha amino acids, two functional groups are separated

  by two carbon atom

• All natural amino acids have S-configuration

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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Tags

NGSS.HS-LS1-6

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

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Tags

NGSS.HS-LS1-6

Which is the structure of isoleucine (pI 6.04) at pH 2.0 ?

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Which is incorrect when converting the three letter code of amino acids to one letter code?

• Glu = E

• Ser = S

• Asp = A

• Pro = P

The primary structure of a protein refers to the:

• Order of amino acids
• α-Helix or β-Pleated Sheet
• Interaction of subunits
• Hydrogen Bonding

Tags

NGSS.HS-LS1-1

What level of protein structure is this?

• Primary
• Secondary
• Tertiary
• Quaternary