Hello, please help me with my assignment. All questions.1. Which of the following statements is accurate regarding these protein structures?a. Proteins in a quaternary structure consist of a simple polypeptide chain.b. Interactions between the R groups in amino acids form tertiary structure.c. Secondary structures are formed by multiple polypeptide chains.d. The two types of primary structure are α- helices and β- pleated sheets.
2. What type of bonds are formed between amino acids?a. Peptide bondb. Glycosidic linkagec. Hydrogen bondsd. Ester linkages
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3. Which of the following is an example of protein denaturation?a. Amino acids fold into repeating patterns due to hydrogen bonding of the peptide backbone.b. Several amino acids are joined together via peptide bonds.c. A protein binds with a substrate, lowering the activation energy of a reaction.d. A protein is exposed to extremely high heat, causing it to lose its secondary structure and be leftwith only its primary structure.
4. A new drug is developed which selectively cleaves covalent bonds between two sulfur atoms ofnon-adjacent amino acids in a polypeptide chain. Which level of protein structure in affectedmolecules would be most directly affected by the drug?a. Primaryb. Secondaryc. Tertiaryd. Quaternary
5. What are molecular chaperones?a. Enzymesb. Cell massc. Tumord. Helper proteins
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6. Chaperones binds to which type of amino acids?a. Polar basicb. Polar acidicc. Hydrophobicd. Hydrophilic neutral
7. Which set of the following amino acids are all polar?a. W K Qb. H M Nc. T N Yd. M T Ce. P C S
8. The only imino acida. Glyb. Cysc. Lysd. Pro
9. Dopamine, norepinephrine and epinephrine are collectively called catecholamines. Which of thefollowing amino acids serves as a precursor in the synthesis of these catecholamines?a. Wb. Tc. Yd. R
10. Debie just gave birth to a healthy baby. However, she was having hard time secreting milk. Whichof these small peptide hormone is associated in low level with Debie’s condition.a. Enkephalinsb. Vasopressinc. Oxytocind. Both A & B
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11. A mother went to a drugstore to purchase a vitamin supplement for her baby. She found out fromthe pharmacist that the vitamins contain an amino acid that can help in the absorption of calciumwhich is helpful for the bone development of her child. What particular amino acid is present?a. Methionineb. Lysinec. Arginined. Phenylalanine
12. This protein that is involve in immune system responses is measured to check to individuals whowere suspected or have been exposed to Covid-19 infections.a. Insulinb. Myoglobinc. Transferrind. Immunoglobulins
13. The 22nd amino acid and the only amino acida. Selenocysteineb. Selenicysteinec. Carbocysteined. Pyrrolysine
14. Ser+thr+tyr will engage this specific interactiona. Hydrogen Bondingb. Disulfide Bondsc. Non-Polar Hydrophobicd. Salt Bridges
Last question 15 is in the picture.
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