Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

3. Amino Acids

Amino Acid Groups

Biochemistry

3. Amino Acids

Amino Acid Groups

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Multiple Choice

Which two amino acids are combined to form the high-intensity sweetener aspartame?

Aspartic acid and phenylalanine

Glutamic acid and glycine

Serine and threonine

Lysine and tryptophan

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Verified step by step guidance

Understand the structure of aspartame: Aspartame is a dipeptide-based artificial sweetener composed of two amino acids linked together.

Recall the amino acids involved in aspartame synthesis: Aspartame is formed by combining aspartic acid and phenylalanine. These amino acids are chemically bonded to create the sweetener.

Eliminate incorrect options: Glutamic acid and glycine, serine and threonine, and lysine and tryptophan do not form aspartame. These combinations are unrelated to the synthesis of this sweetener.

Review the properties of aspartic acid and phenylalanine: Aspartic acid is an acidic amino acid, while phenylalanine is aromatic and hydrophobic. Their combination contributes to the structure and function of aspartame.

Conclude that the correct answer is aspartic acid and phenylalanine, based on the chemical composition of aspartame.