Describe how glycolysis and TCA cycle are linked to each other.

Question

27 Jan 2024

Answer :

Word Count : 544

Glycolysis and the Tricarboxylic Acid (TCA) cycle are interconnected pathways that play crucial roles in cellular energy metabolism. These two processes are central to the catabolism of glucose and contribute to the production of adenosine triphosphate (ATP), which is the primary energy currency of cells.

Glycolysis:

Glycolysis is the initial stage of glucose metabolism, occurring in the cytoplasm of the cell. It involves the breakdown of a single glucose molecule into two molecules of pyruvate, producing a small amount of ATP and reducing equivalents in the form of NADH. The overall process can be summarized in the following steps:

1. Glucose Phosphorylation: Glucose is phosphorylated by ATP to form glucose-6-phosphate, a reaction catalyzed by hexokinase.

2. Isomerization: Glucose-6-phosphate is converted to fructose-6-phosphate through isomerization.

3. Phosphorylation and Isomerization: Fructose-6-phosphate is further phosphorylated to fructose-1,6-bisphosphate with the _______ _____ _______ __________ _____ ____ ______ ________ ____.
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