1. Bioenergetics Cellular Respiration
Test Review

2. What is lactic acid fermentation?
Occurs in cytoplasm of cells when oxygen is not present; pyruvate from glycolysis produces lactic acid & NADH regenerated to NAD+ ; no ATP produced; muscle cells build up lactic acid and require oxygen to eliminate it

3. What is alcoholic fermentation?
Occurs in cytoplasm of yeast when oxygen is not present; pyruvate from glycolysis converted to alcohol and CO2, and NADH regenerated to NAD+ ; no ATP produced

4. Which type of fermentation is used by the brewing and baking industries?
Alcoholic

5. What is ATP used for?
Cellular energy source

6. What does aerobic mean?
With oxygen

7. What parts of cellular respiration happen under aerobic conditions?
Krebs & ETC

8. What does anaerobic mean?
Without oxygen

9. What parts of cellular respiration happen under anaerobic conditions?
Glycolysis & Fermentation*

10. Define glycolysis.
Breakdown of glucose inside the cell to utilize potential energy stored in the molecule; produces pyruvate
-occurs in cytoplasm—produces 2 net ATP
-precedes Krebs(aerobic) or fermentation (anaerobic)

11. What is a waste product of the Krebs cycle?
Carbon Dioxide

12. What is glucose broken down to after the process of glycolysis?
pyruvate

13. How many ATP would the cellular respiration of 15 glucose molecules produce?
15 X 36 = 540 ATP

14. In what part of the cell do each of the following take place:
Glycolysis? cytoplasm
Krebs? mitochondrial matrix
ETC? inner membrane of the mitochondria

15. How many ATP are produced (net production) during each of the following :
Glycolysis? 2
Krebs? 2
ETC? 32

16. Where does ATP store its energy?
Phosphate bonds

17. What is the overall equation for cellular respiration?
glucose + oxygen  carbon dioxide + water + 36 ATP

18. How many ATP are produced once cellular respiration of a single glucose molecule is complete?36

19. Carbon dioxide and alcohol are the two products of what process?
Alcoholic fermentation

20. Under what conditions does fermentation occur?
anaerobic