Skip to content
Back to quiz
6. What is breathing?
- The process that gets oxygen into the body for respiration
- Respiration
7. What does the 'paid back' oxygen do?
- Break down lactic acid into carbon dioxide and water
- Take its place
8. What is the process that occurs inside cells to release the energy from food substances?
- Respiration
- Photsynthesis
9. Which is more efficient?
- Aerobic respiration, more energy is released per molecule of glucose
- Anaerobic respiration, more energy is released per molecule of glucose
10. Is all of the energy from respiration useful?
- No, some is lost as heat
- Yes, none is lost as heat
12. When oxygen is used in respiration it is called __________
- Aerobic respiration
- Anaerobic respiration
13. _____ of the chemical reactions in respiration are controlled by enzymes
14. The energy released by respiration is needed for...
- All life processes
- A variety of life processes
- Some life processes
15. What is the shortage of oxygen called in such situations?
- Oxygen debt
- Lack of oxygen
- Over carbon dioxide
16. Glucose ----> lactic acid + ENERGY
- Anaerobic respiration
- Aerobic respiration
17. Measuring the amount of carbon dioxide or heat given off in a certain time or measuring thee oxygen used in a given time can find the __________
- Rate of photosynthesis
- Rate of respiration
- Respiration
- Rate of carbon dioxide
18. Fermentation is....
- Anaerobic respiration in yeast
- Anaerobic respiration in animals
- Aerobic respiration
19. Which releases more energy?
- Aerobic respiration
- Anaerobic respiration
20. How does the body pay back the 'oxygen debt'?
- By breathing faster and deeper for a while after exercise has finished
- By breathing slower and lighter for a while after exercise has finished