Question

Which of the following is the correct sequence of events in cellular respiration?

1) glycolysis→preparatory reaction→citric acid cycle→electron transport chain
2) krebs cycle→electron transport→glycolysis→preparatory reaction
3) glycolysis→krebs cycle→electron transport chain
4) krebs cycle→glycolysis→electron transport chain→preparatory reaction
5) glycolysis→electron transport chain→preparatory reaction

Answer 1

The correct sequence of events in cellular respiration is glycolysis, preparatory reaction, citric acid cycle, and electron transport chain.

Step-by-step explanation:

The correct sequence of events in cellular respiration is:

1. Glycolysis
2. Preparatory Reaction
3. Citric Acid Cycle (Krebs Cycle)
4. Electron Transport Chain

Glycolysis occurs in the cytoplasm of the cell and does not require oxygen. The preparatory reaction and citric acid cycle take place in the mitochondria and require oxygen. Finally, the electron transport chain occurs in the inner membrane of the mitochondria and is the final stage of cellular respiration.