Which of the following best describes an amino acid that can be used to synthesize proteins?
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- Question 9. Which of thefollowing is not formed through adehydration synthesis reaction?A. polysaccharideB. polypeptideC. Nucleic acidD. phospholipidE. glycerolQuestion 1Predicting Secondary Structure Which of the following peptides is more likely to take up an -helical structure, and why? (a) LKAENDEAARAMSEA (b) CRAGGFPWDQPGTSNQuestion 10 (2 points) A protein heterodimer would be considered an example of: -primary structure -secondary structure -tertiary structure -quaternary structure -atomic structure
- Question 10. All of the following areparts of a nucleotide EXCEPT:A. a five-carbon sugar.B. a six-carbon sugar.C. a phosphate group.D. a nitrogenous base.QUESTION 6 What is the three ketter code for each peptide(a) KFYV(b) ERSC(c) PIMFThe 3-letter code for Peptide (a) is: The 3-letter code for Peptide (b) is: The 3-letter code for Peptide (c) is:Question 4. If you were to synthesize a tetrapeptide consisting of all alanine residues, you would have how many bonds between carbon and nitrogen?
- Question 1.)Draw the main chain structure of a parallel beta sheet that has 4 amino acids in one strand and 5 in the other. Show all of the backbone atoms.Write R1, R2, R3, etc, instead of drawing side chains with the following exception: draw one proline in its entiretywith its side chain. You can put it anywhere in your sheet – I will find it. Add in all hydrogen bonds that stabilize this sheet using dashed lines.Question 9. You have just been served a grilled piece of chicken with the skin intact. Which of the following macromolecules is NOT present in that chicken? A.proteins B.fats C.DNA D.glycogen E.starchQUESTION NO. 1Targeting a protein to be degraded within proteasomes usually requires ubiquitin. In the function of ubiquitin all of the following are true except: A. ATP is required for activation of ubiquicin. B. a peptide bond forms between the carboxyl terminal of ubiquitin and an ε-amino group of a lysine . C. linkage of a protein to ubiquitin does not always mark it for degradation. D. the N-terminal amino acid is one determinant of selection for degradation. E. ATP is required by the enzyme that transfers the ubiquitin to the protein to be degraded QUESTION NO. 2Much of procollagen formation occurs in the endoplasmic reticulum and Golgi apparatus which requires signal peptide. All of the following statements about targeting a protein for the ER are true except. A. signal peptide usually has a positively charged N-terminus and a stretch of hydrophobic amino acids. B. signal peptide emerging from a free ribosome binds signal recognition…
- QUESTION 16 Peptidyl transferase activity (peptide bond enzyme activity) is associated with what site in the ribosome? E P A XText:QUESTION 16 Protein maturation in the ER includes. A Disulfide bond formation B. proteolytic cleavage C attachment of oligosaccharide d. Prolyl isomertzationQuestion 9 Imagine you have a mixture of 2 proteins. Protein A is 3x the mass of protein B. Both have net negative charges, but protein B has 3x more negative charges than protein A. If you load the mixture onto an electrophoresis gel and apply an electric field, which will move faster/slower through the gel? Explain your reasoning.