Foundations in Microbiology
10th Edition
ISBN: 9781259705212
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 2.7, Problem 25ELO
25. Describe the structures of peptides and polypeptides and how their bonds form.
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O Macmillan Learning
Glu-His-Trp-Ser-Gly-Leu-Arg-Pro-Gly
The pKa values for the peptide's side chains, terminal amino groups, and carboxyl groups are provided in the table.
Amino acid Amino pKa Carboxyl pKa Side-chain pKa
glutamate
9.60
2.34
histidine
9.17
1.82
4.25
6.00
tryptophan
9.39
2.38
serine
9.15
2.21
glycine
9.60
2.34
leucine
9.60
2.36
arginine
9.04
2.17
12.48
proline
10.96
1.99
Calculate the net charge of the molecule at pH 3.
net charge at pH 3:
Calculate the net charge of the molecule at pH 8.
net charge at pH 8:
Calculate the net charge of the molecule at pH 11.
net charge at pH 11:
Estimate the isoelectric point (pl) for this peptide.
pl:
Biology Question
This entire structure (Pinus pollen cone) using lifecycle terminology is called what?
Chapter 2 Solutions
Foundations in Microbiology
Ch. 2.1 - Prob. 1ELOCh. 2.1 - Prob. 2ELOCh. 2.1 - Prob. 3ELOCh. 2.1 - Prob. 4ELOCh. 2.1 - Prob. 5ELOCh. 2.1 - Prob. 1CYPCh. 2.1 - Prob. 2CYPCh. 2.1 - Prob. 3CYPCh. 2.1 - Prob. 4CYPCh. 2.1 - Prob. 5CYP
Ch. 2.1 - Prob. 6CYPCh. 2.2 - Prob. 6ELOCh. 2.2 - Prob. 7ELOCh. 2.2 - Prob. 8ELOCh. 2.2 - Prob. 9ELOCh. 2.2 - Prob. 10ELOCh. 2.2 - Prob. 11ELOCh. 2.2 - 7. Explain how the concepti of molecules and...Ch. 2.2 - Prob. 8CYPCh. 2.2 - Prob. 9CYPCh. 2.2 - Prob. 10CYPCh. 2.2 - Prob. 11CYPCh. 2.2 - Prob. 12CYPCh. 2.2 - Prob. 13CYPCh. 2.2 - Prob. 14CYPCh. 2.3 - Prob. 12ELOCh. 2.3 - 13. Explain solutes, solvents, and hydration.Ch. 2.3 - Prob. 14ELOCh. 2.3 - 15. Describe the pH scale and how it was derived;...Ch. 2.3 - Prob. 15CYPCh. 2.3 - Prob. 16CYPCh. 2.3 - 17. What properties of water make it an effective...Ch. 2.3 - Prob. 18CYPCh. 2.3 - 19. What determines whether a substance is an acid...Ch. 2.4 - 16. Describe the chemistry of carbon and the...Ch. 2.4 - Prob. 17ELOCh. 2.4 - Prob. 18ELOCh. 2.4 - Prob. 20CYPCh. 2.4 - Prob. 21CYPCh. 2.4 - Prob. 22CYPCh. 2.4 - 23. What are functional groups?Ch. 2.4 - Prob. 24CYPCh. 2.5 - 19. Define carbohydrate and know the functional...Ch. 2.5 - Prob. 20ELOCh. 2.5 - 21. Discuss the functions of carbohydrates in...Ch. 2.5 - Prob. 25CYPCh. 2.5 - Prob. 26CYPCh. 2.5 - 27. What are some of the functions of...Ch. 2.6 - 22. Define lipid, triglyceride, phospholipid,...Ch. 2.6 - 23. Describe how an ester bond is formed.Ch. 2.6 - Prob. 24ELOCh. 2.6 - 28. Draw simple structural molecules of...Ch. 2.7 - 25. Describe the structures of peptides and...Ch. 2.7 - 26. Characterize the four levels of protein...Ch. 2.7 - 27. Summarize some of the essential functions of...Ch. 2.7 - Prob. 29CYPCh. 2.7 - 30. Differentiate between a peptide, a...Ch. 2.7 - 31. Explain what causes the various levels of...Ch. 2.7 - 32. What functions do proteins perform in a cell?Ch. 2.8 - 28. Identify a nucleic acid and differentiate...Ch. 2.8 - Prob. 29ELOCh. 2.8 - 30. Explain how the DNA code may be copied, and...Ch. 2.8 - 33. Describe a nucleotide and a polynucleotide,...Ch. 2.8 - 34. Name the two purines and the three...Ch. 2.8 - 35. What are the functions of RNA?Ch. 2.8 - 36.What is ATP, and how does it function in cells?Ch. 2.L1 - 1. The smallest unit of matter with unique...Ch. 2.L1 - 2. The charge of a proton is exactly balanced by...Ch. 2.L1 - Prob. 3MCQCh. 2.L1 - Prob. 4MCQCh. 2.L1 - Prob. 5MCQCh. 2.L1 - Prob. 6MCQCh. 2.L1 - Prob. 7MCQCh. 2.L1 - 8. An atom that can donate electrons during a...Ch. 2.L1 - 9. In a solution of NaCl and water, NaCl is the...Ch. 2.L1 - 10. A solution with a pH of 2 than a solution with...Ch. 2.L1 - 11. Fructose is a type of a. disaccharide b....Ch. 2.L1 - 6. Bonds in which atoms share electrons are...Ch. 2.L1 - 13. How is our understanding of microbiology...Ch. 2.L1 - 14. A phospholipid contains a. three fatty acids...Ch. 2.L1 - 15. Proteins are synthesized by linking amino...Ch. 2.L1 - 16. The amino acid that accounts for disulfide...Ch. 2.L1 - 17. DNA is a hereditary molecule that is composed...Ch. 2.L1 - 18. What is meant by the term DMA replication? a....Ch. 2.L1 - 19. Proteins can function as a. enzymes b....Ch. 2.L1 - 20. RNA plays an important role in what biological...Ch. 2.L1 - 1. Which of the following has not been a major...Ch. 2.L1 - 2. What was a significant result of the Mars...Ch. 2.L1 - Prob. 3CSRCh. 2.L1 - Prob. 1WCCh. 2.L1 - Prob. 2WCCh. 2.L1 - Prob. 3WCCh. 2.L1 - Prob. 4WCCh. 2.L1 - Prob. 5WCCh. 2.L1 - 6. Why are hydrogen bonds relatively weak?Ch. 2.L1 - 7. What kind of substances will be expected to be...Ch. 2.L1 - Prob. 8WCCh. 2.L1 - Prob. 9WCCh. 2.L1 - 10. What makes the amino acids distinctive, and...Ch. 2.L1 - Prob. 11WCCh. 2.L1 - Prob. 12WCCh. 2.L1 - 6. Bonds in which atoms share electrons are...Ch. 2.L2 - Prob. 1CTCh. 2.L2 - Prob. 2CTCh. 2.L2 - Prob. 3CTCh. 2.L2 - 4. Distinguish between polar and ionic compounds.Ch. 2.L2 - 5. Is galactose an aldehyde or a ketone sugar?Ch. 2.L2 - 6. a. How many water molecules are released when a...Ch. 2.L2 - Prob. 7CTCh. 2.L2 - Prob. 8CTCh. 2.L2 - Prob. 1VC
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