Final answer:
The correct operational sequence begins with glycolysis, followed by the Krebs cycle, and concludes with the electron transport chain.
Step-by-step explanation:
Operational Sequence of Cellular Respiration Processes
The correct operational sequence of the cellular respiration processes is as follows: First, glycolysis takes place in the cytoplasm, where glucose is broken down into pyruvate. Second, the pyruvate undergoes decarboxylation and is converted into acetyl CoA, which enters the Krebs cycle (also known as the citric acid cycle or the tricarboxylic acid cycle) within the mitochondrial matrix. Here, various high-energy molecules including ATP, NADH, and FADH2 are produced. Third, these high-energy electron carriers donate electrons to the electron transport chain (ETC), which is located in the inner mitochondrial membrane. During ETC, a significant amount of ATP is generated through the process of oxidative phosphorylation.