Concept explainers
(a)
Interpretation:
The structure of lysine should be drawn above its isoelectric point.
Concept Introduction:
Amino acids are called as zwitterions. At all the pH ranges, they consist an ionic character. At low pH, an amino acid is a positive ion and at high pH it is negative ion. Amino acids have equal positive and negative charges at an intermediate pH. This pH is mentioned as an isoelectric point.
(b)
Interpretation:
The structure of lysine should be drawn below its isoelectric point.
Concept Introduction:
Amino acids are called as zwitterions. At all the pH ranges, they consist an ionic character. At low pH, an amino acid is a positive ion and at high pH it is negative ion. Amino acids have equal positive and negative charges at an intermediate pH. This pH is mentioned as an isoelectric point.
(c)
Interpretation:
The structure of lysine should be drawn at its isoelectric point.
Concept Introduction:
Amino acids are called as zwitterions. At all the pH ranges, they consist an ionic character. At low pH, an amino acid is a positive ion and at high pH it is negative ion. Amino acids have equal positive and negative charges at an intermediate pH. This pH is mentioned as an isoelectric point.
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Chapter 22 Solutions
Introduction to General, Organic and Biochemistry
- 21-82 Suggest a reason why the same protein system moves both sodium and potassium ions into and out of the cell.arrow_forward22-48 How many amino acid residues in the A chain of insulin are the same in insulin from humans, cattle (bovine), hogs, and sheep?arrow_forward22-16 Which amino acids in Table 22-1 have more than one stereocenter?arrow_forward
- 22-21 Explain why an amino acid cannot exist in an un-ionized form at any pH.arrow_forward22-64 If both cysteine residues on the B chain of insulin were changed to alanine residues, how would it affect the quaternary structure of insulin?arrow_forward21-70 How many different triglycerides can you create using three different fatty acids (A, B, and C)?arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning