10 Questions
What is the range for the change in values mentioned in the text?
-1800 to 0
Which type of bond has partial double bond character due to the text?
Peptide bond
What characterizes the peptide bond as mentioned in the text?
Partially positive N and partially negative O
Which scientist proposed the concept of alpha helix and beta sheet in proteins in 1951?
Linus Pauling
What is the main characteristic of secondary structure of a polypeptide chain as per the text?
The backbone atoms are planar
Which structure type stabilizes local structures in proteins through hydrogen bonds?
Beta sheet
What did Linus Pauling win the Nobel Prize in Chemistry for in 1954?
Proposing alpha helix and beta sheet in proteins
'Zwitterions' refers to molecules with:
+1 and -1 charges simultaneously
'pKa values' are used primarily to determine:
Charge of amino acids at a specific pH
What is the main reason for the planar nature of peptide bond groups?
Presence of double bond character
Test your knowledge on the classification and properties of amino acids. The quiz covers nonpolar aliphatic, polar uncharged, negatively charged, positively charged, and aromatic amino acids, along with their ionic forms at different pH levels.
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