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Flashcards · Biology · Respiration and Biological Molecules

Aerobic and Anaerobic Respiration

22 cards

  1. What does respiration supply in all living cells?

    ATP, which carries energy to where it is needed.

  2. What does ATP stand for?

    Adenosine triphosphate.

  3. How much ATP does aerobic respiration make per glucose?

    About 30 ATP.

  4. How much ATP does anaerobic respiration make per glucose?

    2 ATP.

  5. Why is respiration called a universal process?

    It happens in all living cells.

  6. What is respiration?

    An exothermic reaction in living cells that transfers energy from glucose.

  7. Is respiration endothermic or exothermic?

    Exothermic.

  8. How often does respiration happen in living cells?

    It is continuously occurring.

  9. Name three uses of the energy from respiration.

    Building larger molecules, movement and keeping warm.

  10. Write the word equation for aerobic respiration.

    Glucose + oxygen → carbon dioxide + water.

  11. Write the symbol equation for aerobic respiration.

    C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O.

  12. Where do most aerobic respiration reactions take place?

    In the mitochondria.

  13. What is anaerobic respiration?

    Respiration without oxygen.

  14. Write the equation for anaerobic respiration in muscles.

    Glucose → lactic acid.

  15. Write the equation for anaerobic respiration in yeast and plant cells.

    Glucose → ethanol + carbon dioxide.

  16. Why does anaerobic respiration transfer much less energy?

    The oxidation of glucose is incomplete.

  17. What is fermentation?

    Anaerobic respiration in yeast cells.

  18. How does yeast make bread rise?

    It releases carbon dioxide, which makes bubbles in the dough.

  19. Name two industries that use fermentation.

    Bread making and making alcoholic drinks.

  20. What is the difference between breathing and respiration?

    Breathing brings oxygen in. Respiration is the reaction in cells that transfers energy.

  21. Three respiration equations drawn with icons and a pointer marked X to lactic acid. Name the product marked X.

    Lactic acid. It is made when muscles respire anaerobically.

  22. Three respiration equations drawn with icons and no labels. Name each type of respiration and the substances on the diagram. The same three respiration equations with every part labelled.

    Aerobic respiration: glucose + oxygen → carbon dioxide + water, lots of energy. Anaerobic respiration in muscles: glucose → lactic acid, little energy. Anaerobic respiration in yeast and plants: glucose → ethanol + carbon dioxide, little energy.