Which fate is possible for a keto acid derived from deamination of a glucogenic amino acid?

• A. Conversion into a gluconeogenic intermediate such as pyruvate or a TCA cycle intermediate and then used to synthesize glucose via gluconeogenesis
• B. Direct incorporation into DNA without further modification because keto acids are structural nucleotides for genetic material
• C. Transformation directly into essential fatty acids that the body cannot produce without multiple additional vitamins and minerals being present
• D. Immediate excretion unchanged in urine because keto acids are toxic waste that cannot be metabolized further

Answer: (A)