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Worksheetstertiary and quaternary amino acids
Total questions: 10
Worksheet time: 5mins
the stabilizing interactions in proteins include disulfide bond, hydrogen bond ,_________and ___________
electrostatic attraction and hydrophilic interaction
electrostatic attraction and hydrophobic interaction
ionic interaction and hydrophobic interaction
ionic interaction and hydrophilic interaction
In tertiary amino acids ,the more energy released, more unstable the protein
true
false
Which one of the following is a tertiary structure?
Myoglobin
Hemoglobin
Keratin
Insulin
Inside-out amino acid distribution is seen in
proline
porin
pepsin
tryptophan
In this protein structure what does A and B represent
A- heme group and iron atom
B - alpha helices
A - alpha helices
B - heme group and iron atom
tertiary refers to the spatial arrangement of ______while quaternary refers to the spatial arrangement of _________
amino acid ,subunit
subunit, amino acid
dimer ,amino acid
amino acid, dimer
The polypeptide chain folds so that its ________side chains are buried and its_______ ,charged chains are on the surface
hydrophobic, nonpolar
hydrophobic ,polar
hydrophilic ,nonpolar
hydrophilic, polar
The interior of tertiary structure consists entirely of polar residues.
true
false
Compact globular units on polypeptide chains like pearls on string
dimer
domain
subunit
each polypeptide chain in a protein is called
dimer
domain
subunit
