Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

25. Protein and Amino Acid Metabolism

Amino Acid Catabolism: Amino Group

GOB Chemistry

25. Protein and Amino Acid Metabolism

Amino Acid Catabolism: Amino Group

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3:05 minutes

Problem 65a

Textbook Question

Draw the condensed structural formula for the α-keto acid produced from each of the following in transamination:
a.

Verified step by step guidance

Understand the concept of transamination: Transamination is a biochemical reaction where an amino group from an amino acid is transferred to a keto acid, resulting in the formation of a new amino acid and a new α-keto acid. In this case, we are focusing on the α-keto acid produced.

Identify the structure of the given amino acid: Carefully examine the provided image of the amino acid. Note the positions of the amino group (-NH2), the carboxyl group (-COOH), and the side chain (R group).

Determine the α-keto acid structure: In transamination, the amino group (-NH2) on the α-carbon of the amino acid is replaced by a keto group (=O). This means the α-carbon will now have a double-bonded oxygen instead of the amino group.

Draw the condensed structural formula: Replace the amino group with a keto group in the structure of the amino acid. Ensure that the rest of the molecule, including the side chain (R group) and the carboxyl group, remains unchanged.

Verify the final structure: Double-check the condensed structural formula to ensure it accurately represents the α-keto acid produced from the transamination reaction. Confirm that the α-carbon now has a keto group and that all other parts of the molecule are intact.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Transamination

Transamination is a biochemical process where an amino group from an amino acid is transferred to a keto acid, resulting in the formation of a new amino acid and a new keto acid. This reaction is crucial in amino acid metabolism and is catalyzed by enzymes known as transaminases or aminotransferases. Understanding this process is essential for identifying the α-keto acids produced from specific amino acids.

α-Keto Acid

An α-keto acid is a type of organic compound that contains a carbonyl group (C=O) adjacent to a carboxylic acid group (COOH). These compounds play a significant role in metabolism, particularly in the Krebs cycle and amino acid catabolism. Recognizing the structure and function of α-keto acids is vital for drawing their condensed structural formulas accurately.

Condensed Structural Formula

A condensed structural formula is a way of representing a chemical compound that shows the arrangement of atoms and the connectivity between them without depicting all the bonds explicitly. This format simplifies the representation of complex molecules, making it easier to visualize their structure. Mastery of drawing condensed structural formulas is important for accurately conveying the molecular structure of the α-keto acids produced in transamination.

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