Exemplar Problems

Question:

Explain the fate of the intermediates produced during the Krebs Cycle. How are these intermediates utilized in other metabolic pathways?

Answer:

Intermediates produced during the Krebs Cycle serve as precursors for various metabolic pathways:

• Oxaloacetate can be used to initiate a new cycle and combines with acetyl-CoA.

• Citrate can contribute to fatty acid synthesis.

• Alpha-ketoglutarate and succinyl-CoA are intermediates in amino acid synthesis.

• Malate can be transported to the cytoplasm for gluconeogenesis.

• These intermediates ensure that the cycle is interconnected with other metabolic processes, supporting overall cell function.