| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | electron transport chain | scientific community | A critical process in cellular respiration and photosynthesis to generate ATP and NADH | 1 |
| 2 | proton transport | scientific community | Crucial process for energy production in cells, studied in biochemistry and cellular biology | 1 |
| 3 | proton transport | scientific community | Proton transport is a fundamental process in cellular respiration and photosynthesis. | 1 |