Nebiat Berhanu Unit 7 Crossword

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Across
  1. 1. Waste gas released during the Krebs cycle
  2. 4. Waste product formed when oxygen accepts electrons and H⁺ ions.
  3. 5. The inner space of the mitochondria where the Krebs cycle occurs.
  4. 7. Electron carrier that transfers energy to the electron transport chain.
  5. 8. Main energy molecule produced during respiration.
  6. 11. Product of anaerobic respiration in muscle cells.
  7. 12. Type of respiration that happens without oxygen.
  8. 13. Cycle that produces CO₂, ATP, NADH, and FADH₂ in the mitochondria.
Down
  1. 2. Final electron acceptor in the electron transport chain.
  2. 3. Final stage where most ATP is made using electrons and oxygen.
  3. 5. Organelle where aerobic respiration occurs.
  4. 6. Another electron carrier formed during the Krebs cycle.
  5. 9. Product of glycolysis that enters the mitochondria.
  6. 10. First step of respiration that splits glucose into pyruvate.