BioChem C785 module 2 quiz/Questions & Answers/ Complete Latest Solution

BioChem C785 module 2 quiz/Questions & Answers/ Complete Latest Solution Which image below shows the carboxyl group of an amino acid circled? (ANS- An amino acid consists of an amino group, carboxyl group, a hydrogen and a variable side chain arranged around a central alpha carbon atom. The backbone of an amino acid is the entire amino acid molecule minus the variable side chain. The carboxyl group of an amino acid is shown as COO_ or COOH attached to a central alpha carbon atom of the amino acid. carboxyl group (ANS- A -COOH group, found in organic acids. amino group (ANS- a chemical group consisting of a nitrogen atom bonded to two hydrogen atoms Where are the hydrophobic amino acids found in the protein? (ANS- found in the interior of the protein What kind of bond connects a positively charged group and a negatively charged group? (ANS- ionic bond What type of reaction forms a peptide bond? (ANS- dehydration synthesis What type of reactions breaks the peptide bond? (ANS- Hydrolysis reaction Peptide bonds are in what structure? (ANS- Primary structure Hydrogen bonds hold which structure together? (ANS- Secondary and tertiary What amino acids are found on the exterior of the protein? (ANS- polar amino acids Two non-polar amino acids make what kind of interaction? (ANS- Hydrophobic interactions Non-covalent interactions between amino acid R groups (ANS- hydrophobic, ionic and hydrogen bonds What structure has a disulfide bond that holds together 2 subunits of an enzyme? (ANS- quaternary structure What structure has an Ionic interactions that hold together 4 different subunits of a protein? (ANS- quaternary structure What structure has an Ionic interactions that hold together 3 identical polypeptides (ANS- quaternary structure non polar amino acids (ANS- hydrophobic bond, weak strength, heat disrupts the interaction primary structure of protein (ANS- the amino acid sequence of the polypeptide chain secondary structure of protein (ANS- Hydrogen bonds are involved in this level of structure and the amino and carboxyl groups (backbone) form these bonds tertiary structure of protein (ANS- hydrogen, ionic and disulfide bonds as well as hydrophobic interactions quaternary structure of a protein (ANS- 2 or more polypeptides interact to form the protein Fate of misfolded proteins (ANS- aggregation, degradation and refolding