Question

atp is produced during the process of cellular respiration. which is the order of the steps of cellular respiration?
○ krebs cycle → calvin cycle → electron transport chain
○ electron transport chain → krebs cycle → glycolysis
○ glycolysis → krebs cycle → electron transport chain
○ calvin cycle → electron transport chain → glycolysis

Explanation:

1. Recall the steps of cellular respiration: Glycolysis occurs first (breaks down glucose into pyruvate), then the Krebs cycle (further breaks down pyruvate - derived molecules), and finally the electron transport chain (generates most ATP).
2. Eliminate options with Calvin cycle (it's part of photosynthesis, not respiration). Also, check the order: glycolysis → Krebs cycle → electron transport chain matches the correct sequence.

Answer:

C. glycolysis ➔ Krebs cycle ➔ electron transport chain (assuming the third option is labeled C; if the original options had labels like A, B, C, D, adjust the label as per the original, but based on content, the correct sequence is glycolysis, then Krebs cycle, then electron transport chain)