Ch. 3 - Amino AcidsWorksheetSee all chapters
All Chapters
Ch. 1 - Introduction to Biochemistry
Ch. 2 - Water
Ch. 3 - Amino Acids
Ch. 4 - Protein Structure
Ch. 5 - Protein Techniques
Ch. 6 - Enzymes and Enzyme Kinetics
Ch. 7 - Enzyme Inhibition and Regulation
Ch. 8 - Protein Function
Ch. 9 - Carbohydrates
Ch. 10 - Lipids
Ch. 11 - Biological Membranes and Transport
Ch. 12 - Biosignaling
Clutch Review 1: Nucleic Acids, Lipids, & Membranes
Clutch Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway
Clutch Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism
Clutch Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation
Sections
Amino Acid Groups
Amino Acid Three Letter Code
Amino Acid One Letter Code
Amino Acid Configuration
Essential Amino Acids
Nonpolar Amino Acids
Aromatic Amino Acids
Polar Amino Acids
Charged Amino Acids
How to Memorize Amino Acids
Zwitterion
Non-Ionizable Vs. Ionizable R-Groups
Isoelectric Point
Isoelectric Point of Amino Acids with Ionizable R-Groups
Titrations of Amino Acids with Non-Ionizable R-Groups
Titrations of Amino Acids with Ionizable R-Groups
Amino Acids and Henderson-Hasselbalch

Concept #1: Amino Acid Zwitterions

Practice: Which shows the proper structure of Leu at physiological pH?

Concept #2: Determining Predominant Amino Acid Structures

Example #1: At pH 2, which is the predominant structure of Val?

Practice: Fill in the groups for the predominant structure of Ala at pH 13?

Practice: Fill in the appropriate groups for Asp at pH 4.3.

Practice: Draw the predominant structure of Arg at pH 6.5? (pK a1 = 9.04, pKa2 = 2.17, pKa3 = 12.48).

Practice: At what pH would an amino acid bear both a neutral -COOH and a -NH 2 group?