Multiple Choice
Draw α-keto acid produced by transamination of glutamine.
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25. Protein and Amino Acid Metabolism
Amino Acid Catabolism: Amino Group
Struggling with GOB Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What amino acid yields the following α-keto acid through transamination?
A
Lysine
B
Methionine
C
Cysteine
D
Glutamate
Verified step by step guidance1
Identify the structure in the image: The image shows an α-keto acid with a sulfur atom, which is characteristic of methionine-derived α-keto acids.
Understand transamination: Transamination is a process where an amino acid is converted into an α-keto acid by transferring its amino group to a keto acid.
Recognize the α-keto acid: The structure in the image is α-keto-γ-methylthiobutyrate, which is derived from methionine.
Match the amino acid to the α-keto acid: Methionine is the amino acid that yields α-keto-γ-methylthiobutyrate through transamination.
Conclude the identification: Based on the structure and the process of transamination, methionine is the correct amino acid that corresponds to the α-keto acid shown in the image.
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