2. To play click on circle Back to menu

3. 100 200 100 400 300 200 100 400 300 200 100 400 300 200 400 300 100 200 300 400 Glycolysis Pre- Kreb’s Cycle ETCProducts Back to menu

4. 1 Glycolysis is the anaerobic breakdown of glucose into ________________ What is ….pyruvic acid Click here for answer back

5. 2 Glycolysis takes place in the ___________________ back Click here for answer What is….the cytosol

6. 3 How many ATP are made during glycolysis? back Click here for answer What is ….4

7. 4 What molecule made during glycolysis is need for the intermediary reaction(pre-Kreb’s) back Click here for answer What is….pyruvic acid

8. 1 Where does the pre-Kreb’s reaction take place? back Click here for answer What is ….the mitochondrial matrix

9. 2 Pyruvic acid combines with ___________ to form acetyl CoA back Click here for answer What is ….Coenzyme A

10. 3 What poisonous atmospheric gas is produced during the pre-Kreb’s reaction back Click here for answer What is ….Carbon dioxide

11. 4 What happens to the NADH made during pre-Kreb’s? back Click here for answer What is ….it goes to the ETC

12. 1 The first reaction of the Kreb’s cycle produces _______________ back Click here for answer What is….citric acid

13. 2 What 2 carbon compound made in pre- Kreb’s is needed to start the Kreb’s Cycle? back Click here for answer What is ….Acetyl CoA

14. 3 What are the two electron donating molecules made in the Kreb’s Cycle? back Click here for answer What are ….NADH & FADH 2

15. 4 How many ATP can each NADH produce? back Click here for answer What are ….3

16. 1 The folds on the inner mitochondrial membrane are called____________ back Click here for answer What are ….christae

17. 2 What molecule donates electrons to the electron transport chain? back Click here for answer What is ….NADH

18. 3 What is the final electron acceptor of the ETC? back Click here for answer What is ….oxygen

19. 4 What are the three products of the ETC? back Click here for answer What are ….CO 2, water, ATP

20. 1 As a result of cellular respiration a total of ____ATP are produced from one _________ molecule back Click here for answer What is ….40….glucose

21. 2 Why is there only a net yield of 2 ATP from glycolysis if 4 are made? back Click here for answer What is ….2 ATP are needed to start glycolysis

22. 3 As a result of Cellular respiration there is an overall gain of ______ATP gained from one glucose molecule back Click here for answer What are ….36

23. 4 What is the significance of hydrogen protons in the mitochondria? back Click here for answer What is….They help create a concentration gradient to make ATP