CHEM 441 EXAM 1 BIOCHEMISTRY QUESTIONS WITH VERIFIED ANSWERS.100% SCORE

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Question 1 1 out of 1 points For Questions #1-12, consider the following three peptides: Peptide #1: L-I-T-V Peptide #2: C-Q-H-R Peptide #3: E-G-E-A As needed, refer to any/all pKa values within... Table 3-1 of Lehninger; assume these values are correct for amino acid residues within peptides. Question #1: Which peptide has the lowest pI value? Selected Answer: Peptide 3 Correct Answer: Evaluation Method Correct Answer Case Sensitivity Exact Match #3 Exact Match 3 Exact Match Peptide #3 Exact Match EGEA Exact Match E-G-E-A  Question 2 1 out of 1 points Which peptide has the highest pI value? Selected Answer: Peptide 2 Correct Answer: Evaluation Method Correct Answer Case Sensitivity Exact Match #2 Exact Match 2 Exact Match Peptide #2 Exact Match CQHR Exact Match C-Q-H-R  Question 30 out of 1 points Which of the three peptides has the fewest number of ionizable groups? Selected Answer: Peptide 2, 3 Correct Answer: Evaluation Method Correct Answer Case Sensitivity Exact Match #1 Exact Match 1 Exact Match Peptide #1 Exact Match LITV Exact Match L-I-T-V Response Feedback: LITV has just 2 ionizable groups; CQHR has 5 ionizable groups; EGEA has 4 ionizable groups.  Question 4 0 out of 1 points Which of the three peptides has the greatest number of ionizable groups? Selected Answer: Peptide 1 Correct Answer: Evaluation Method Correct Answer Case Sensitivity Exact Match #2 Exact Match 2 Exact Match Peptide #2 Exact Match CQHR Exact Match C-Q-H- [Show More]

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