Ch. 26 - Amino Acids, Peptides, and ProteinsWorksheetSee all chapters
All Chapters
Ch. 1 - A Review of General Chemistry
Ch. 2 - Molecular Representations
Ch. 3 - Acids and Bases
Ch. 4 - Alkanes and Cycloalkanes
Ch. 5 - Chirality
Ch. 6 - Thermodynamics and Kinetics
Ch. 7 - Substitution Reactions
Ch. 8 - Elimination Reactions
Ch. 9 - Alkenes and Alkynes
Ch. 10 - Addition Reactions
Ch. 11 - Radical Reactions
Ch. 12 - Alcohols, Ethers, Epoxides and Thiols
Ch. 13 - Alcohols and Carbonyl Compounds
Ch. 14 - Synthetic Techniques
Ch. 15 - Analytical Techniques: IR, NMR, Mass Spect
Ch. 16 - Conjugated Systems
Ch. 17 - Aromaticity
Ch. 18 - Reactions of Aromatics: EAS and Beyond
Ch. 19 - Aldehydes and Ketones: Nucleophilic Addition
Ch. 20 - Carboxylic Acid Derivatives: NAS
Ch. 21 - Enolate Chemistry: Reactions at the Alpha-Carbon
Ch. 22 - Condensation Chemistry
Ch. 23 - Amines
Ch. 24 - Carbohydrates
Ch. 25 - Phenols
Ch. 26 - Amino Acids, Peptides, and Proteins

Are you ready to learn the 20 amino acids?! Let's get started. 

Concept #1: Nonpolar Amino Acids

There are 6 amino acids in the polar side-chain category. Let's learn them!

Concept #2: Polar Amino Acids

5 more! In the following video we will learn the 2 acidic and 3 basic side chains for amino acids. 

Concept #3: Charged Amino Acids

There are 9 essential amino acids. Let's dive deeper into their meaning.

Concept #4: Essential Amino Acids

Major props if you made it this far. Below we will use the tips and tricks learned above to fill in a blank chart and do some practice problems. Let's do this. 

Example #1: Blank Amino Acid Worksheet

Practice: Non-Polar Sidechains - Fill in the missing sidechains on the following target tripeptide.

Practice: Non-Polar Sidechains - Fill in the missing sidechains on the following target tripeptide.

Practice: Non-Polar Sidechains - Provide the complete structure of the tripeptide P-F-W

Practice: Polar Sidechains - Provide the Fischer Projection of Glutamine (Q)

Practice: Polar Sidechains - Provide the complete structure of the dipeptide Asn-Cys

Practice: Polar Sidechains - Fill in the missing sidechains on the following target oligopeptide.

Note: While the structure of Asparagine is correctly drawn at position #5 in the above video. The abbreviation "N" actually belongs to Asparagine, not Arginine.

Practice: Acidic/Basic Sidechains - Provide the Fischer Projection of Amino Acid (H)

Practice: Acidic/Basic Sidechains - Fill in the missing sidechains on the following target oligopeptide.

Practice: Acidic/Basic Sidechains - Provide the complete structure of the oligopeptide V-I-D-Y. Based on your knowledge of hydrophobicity, which side of the peptide is more likely bury itself within the protein?