1. Chapter 8 Review! Cellular Energy

2. Directions Work in a group of 3-4 students We will go group by group to answer a question. If a group cannot answer a question correctly, the first group to raise their hand and is called on may answer the question. There is no penalty for guessing. Team with the most points at the end wins! I may deduct points for disruptive behavior …

3. Here we go … Good luck!

4. Energy is … The ability to do work

5. The first law of thermodynamics states that … Energy is neither created nor destroyed, it is just transferred

6. The second law of thermodynamics states that … Energy cannot be transferred 100% - some energy is lost in the process

7. How do autotrophs obtain energy? The produce it themselves – photosynthesis or chemosynthesis

8. How do heterotrophs obtain energy? By eating other organisms

9. What is the ultimate source of energy for all living things? Why? The sun; autotrophs are dependent on the sun & heterotrophs are dependent on autotrophs

10. An example of chemical energy is ATP

11. How is energy released from ATP? When ATP loses a phosphate and is converted to ADP

12. Can ADP be re-charged? Yes, by adding a phosphate group ADP + P  ATP

13. Which of the diagrams in Figure 8-1 show how energy is produced in a cell?

14. All of the following are parts of ADP except …

15. The process whereby plants capture energy and make complex molecules is known as… Photosynthesis

16. In which organelle does photosynthesis take place? The chloroplast

17. Tell me the equation for photosynthesis 6CO2 + 6H2O + light  C6H12O6 + O2

18. C 6 H 12 O 6 is … Glucose

19. Photosynthesis is broken into 2 phases. What are they? 1.Light dependent reaction 2.Calvin cycle or light independent reaction

20. Where does the light dependent reaction occur? Thylakoid

21. What is produced in the light dependent reaction? What are their fates? ATP, NADPH, oxygen

22. Where does the Calvin cycle take place? Stroma

23. Which photosynthesis reactant is needed for the Calvin cycle to take place? Carbon dioxide

24. Which photosynthesis product is produced in the Calvin cycle? Glucose

25. What do you think would happen to glucose production in photosynthesis if CO2 was removed from the environment? No sugars would be produced b/c the Calvin cycle requires CO2

26. What does the Calvin cycle send back to the light dependent reaction? ADP

27. Identify the main energy- trapping molecule in plants. Chlorophyll

28. Why do plants appear green? Because chlorophyll reflects green light

29. A substance, produced during the process of photosynthesis, that is used for completion of cellular respiration is … Oxygen

30. What happens during glycolysis? 1.Glucose is split 2.Pyruvate is made 3.ATP is made

31. What is the process called when organic compounds are broken down in the absence of oxygen? Anaerobic respiration or fermentation

32. In what organisms does alcoholic fermentation take place? Yeast and bacteria

33. When muscles are exercised extensively in the absence of sufficient oxygen, ________ is produced. Lactic acid

34. Which of the following is not apart of cellular respiration: electron transport, glycolysis, Krebs cycle, Calvin cycle The Calvin cycle … it’s apart of photosynthesis!

35. The major atmospheric byproduct of photosynthesis is … Oxygen

36. Our goal … Is for EVERYONE to earn an 80% (a B or better!) on tomorrow’s exam!