Written by Merel Dagher (PEACE Adivsor)
Hydrogen bonds are incredibly important, as large quantities of them provide stability and strong interactions between molecules. Of the following choices, where does hydrogen bonding NOT occur?
a. between water molecules
b. in DNA
c. within an individual amino acid
d. in polysaccharides
e. binding enzymes to substrates
a. between water molecules
b. in DNA
c. within an individual amino acid
d. in polysaccharides
e. binding enzymes to substrates
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The correct answer is c. Obviously hydrogen bonding occurs in water (Oxygen is highly electronegative). They also occur in DNA, as a bond between the bases on each of the helices. They are extremely important in creating polysaccharides from simple sugars. Finally, the play a big role in the interactions between enzymes and their respective substrates. However, amino acids don’t make hydrogen bonds – the bond that is formed between amino acids is called the peptide bond to create an amide. However, keep in mind that protein secondary, tertiary and quaternary structures have an abundance of hydrogen bonds.