Biochemistry - C785 Module 2 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
carboxyl group - CORRECT ANSWER✔✔- A -COOH group, found in organic acids.
amino group - CORRECT ANSWER✔✔- a chemical group consisting of a nitrogen atom
bonded to two hydrogen atoms
Where are the hydrophobic amino acids found in the protein? - CORRECT ANSWER✔✔-
found in the interior of the protein
What kind of bond connects a positively charged group and a negatively charged group? -
CORRECT ANSWER✔✔- ionic bond
What type of reaction forms a peptide bond? - CORRECT ANSWER✔✔- dehydration
synthesis
What type of reactions breaks the peptide bond? - CORRECT ANSWER✔✔- Hydrolysis
reaction
Peptide bonds are in what structure? - CORRECT ANSWER✔✔- Primary structure
Hydrogen bonds hold which structure together? - CORRECT ANSWER✔✔- Secondary and
tertiary
What amino acids are found on the exterior of the protein? - CORRECT ANSWER✔✔-
polar amino acids
Two non-polar amino acids make what kind of interaction? - CORRECT ANSWER✔✔-
Hydrophobic interactions
, Non-covalent interactions between amino acid R groups - CORRECT ANSWER✔✔-
hydrophobic, ionic and hydrogen bonds
What structure has a disulfide bond that holds together 2 subunits of an enzyme? -
CORRECT ANSWER✔✔- quaternary structure
What structure has an Ionic interactions that hold together 4 different subunits of a protein? -
CORRECT ANSWER✔✔- quaternary structure
What structure has an Ionic interactions that hold together 3 identical polypeptides -
CORRECT ANSWER✔✔- quaternary structure
non polar amino acids - CORRECT ANSWER✔✔- hydrophobic bond, weak strength, heat
disrupts the interaction
primary structure of protein - CORRECT ANSWER✔✔- the amino acid sequence of the
polypeptide chain
secondary structure of protein - CORRECT ANSWER✔✔- Hydrogen bonds are involved in
this level of structure and the amino and carboxyl groups (backbone) form these bonds
tertiary structure of protein - CORRECT ANSWER✔✔- hydrogen, ionic and disulfide bonds
as well as hydrophobic interactions
quaternary structure of a protein - CORRECT ANSWER✔✔- 2 or more polypeptides
interact to form the protein
Fate of misfolded proteins - CORRECT ANSWER✔✔- aggregation, degradation and
refolding
What kind of interaction between misfolded protein leads to aggregation? - CORRECT
ANSWER✔✔- hydrophobic interaction
ACTUAL Exam Questions and CORRECT
Answers
carboxyl group - CORRECT ANSWER✔✔- A -COOH group, found in organic acids.
amino group - CORRECT ANSWER✔✔- a chemical group consisting of a nitrogen atom
bonded to two hydrogen atoms
Where are the hydrophobic amino acids found in the protein? - CORRECT ANSWER✔✔-
found in the interior of the protein
What kind of bond connects a positively charged group and a negatively charged group? -
CORRECT ANSWER✔✔- ionic bond
What type of reaction forms a peptide bond? - CORRECT ANSWER✔✔- dehydration
synthesis
What type of reactions breaks the peptide bond? - CORRECT ANSWER✔✔- Hydrolysis
reaction
Peptide bonds are in what structure? - CORRECT ANSWER✔✔- Primary structure
Hydrogen bonds hold which structure together? - CORRECT ANSWER✔✔- Secondary and
tertiary
What amino acids are found on the exterior of the protein? - CORRECT ANSWER✔✔-
polar amino acids
Two non-polar amino acids make what kind of interaction? - CORRECT ANSWER✔✔-
Hydrophobic interactions
, Non-covalent interactions between amino acid R groups - CORRECT ANSWER✔✔-
hydrophobic, ionic and hydrogen bonds
What structure has a disulfide bond that holds together 2 subunits of an enzyme? -
CORRECT ANSWER✔✔- quaternary structure
What structure has an Ionic interactions that hold together 4 different subunits of a protein? -
CORRECT ANSWER✔✔- quaternary structure
What structure has an Ionic interactions that hold together 3 identical polypeptides -
CORRECT ANSWER✔✔- quaternary structure
non polar amino acids - CORRECT ANSWER✔✔- hydrophobic bond, weak strength, heat
disrupts the interaction
primary structure of protein - CORRECT ANSWER✔✔- the amino acid sequence of the
polypeptide chain
secondary structure of protein - CORRECT ANSWER✔✔- Hydrogen bonds are involved in
this level of structure and the amino and carboxyl groups (backbone) form these bonds
tertiary structure of protein - CORRECT ANSWER✔✔- hydrogen, ionic and disulfide bonds
as well as hydrophobic interactions
quaternary structure of a protein - CORRECT ANSWER✔✔- 2 or more polypeptides
interact to form the protein
Fate of misfolded proteins - CORRECT ANSWER✔✔- aggregation, degradation and
refolding
What kind of interaction between misfolded protein leads to aggregation? - CORRECT
ANSWER✔✔- hydrophobic interaction
