Multiple Choice (MCQ) Questions on Respiration : Grade 11 Biology
byStaff Reporter-
Respiration is a vital process that takes place in all living organisms. It involves breaking down glucose to release energy, which is used for carrying out various life activities. There are two types of respiration: aerobic respiration, which requires oxygen, and anaerobic respiration, which does not use oxygen. The energy released is stored in a special molecule called ATP (adenosine triphosphate). Learning about respiration helps us understand how our bodies and other living things get the energy they need to live and grow. Use the questions below to test your understanding of this important process.
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1. What is the primary purpose of cellular respiration?
2. Where does aerobic respiration occur in the cell?
3. Which gas is a byproduct of aerobic respiration?
4. What molecule is broken down during cellular respiration to release energy?
5. How many ATP molecules are produced in aerobic respiration from one glucose molecule?
6. What is the first stage of cellular respiration?
7. What happens during anaerobic respiration in muscle cells?
8. Which of the following is NOT a stage of aerobic respiration?
9. What is the role of oxygen in aerobic respiration?
10. Which of the following organisms can perform anaerobic respiration?
11. What is the end product of glycolysis?
12. In which part of the mitochondrion does the Krebs cycle occur?
13. What enzyme is responsible for synthesizing ATP during cellular respiration?
14. What is the main difference between aerobic and anaerobic respiration?
15. Which process produces more ATP?
16. Which molecule carries electrons to the electron transport chain?
17. How is energy released from ATP?
18. Which stage of respiration produces the most ATP?
19. What compound is produced when yeast undergoes anaerobic respiration?
20. What happens to the carbon atoms from glucose during aerobic respiration?
