1. Be sure to CORRECT and fix any mistakes in RED on your paper! E337 Powering Cellular Activities Review Be sure to CORRECT and fix any mistakes in RED on your paper!

2. Cellular Respiration Cellular Respiration: You may know that yeast is added to dough when bread is made. The dough is allowed to sit awhile, and it expands and rises. The texture becomes fluffier, and the dough becomes filled with holes and pores, like a sponge. But how does this relate to cellular respiration? Answer: Bread rises because yeast is using sugar/food in the dough and going through cellular respiration and giving off carbon dioxide. That carbon dioxide causes bread to rise.

3. How Cells Convert food to energy. #1 Similarities between respiration and photosynthesis? (we did this on our ET last class!)

4. Respiration Enzymes + + + Carbon Dioxide Water #1

5. Photosynthesis ++ Chlorophyll

6. How Cells Convert food to energy. #1 Similarities between respiration and photosynthesis? Almost reverse reactions. Products of respiration are the reactants of photosynthesis and vice versa! ** However, in photosynthesis, light energy is converted to chemical energy and in respiration, chemical energy is converted to chemical energy.

7. #2: glycolysis in cytoplasm; cellular respiration in the Mitochondria

8. Because plants need to use their food for energy for life processes! Convert chemical energy (glucose) to chemical energy (ATP)

9. 4. What evidence do you have that cellular respiration occurs in plant cells? Think back to the Elodea Photosynthesis lab. Bubbles formed. (During photosynthesis, O2 is produced & CO2 is produced during cellular respiration) 5. What gases did the plant exchange? CO 2 & O 2

10. 6.

11. #6.Combustion of Methane: Burning Stuff Heat Energy

12. Respiration enzymes C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + Chemical Energy Combustion heat CH 4 + 2O 2 CO 2 + 2 H 2 O + Chemical Energy

13. Respiration Enzymes + + + Carbon Dioxide Water

14. Why you no catch on FIRE? Enzymes + + + Enzymes Breaks Stuff Slowly, Release Energy Slowly Keep You from Burning Up

15. #8

16. 1. What functions are ATP molecules needed for? ATP molecules are needed for basic cell functions such as active transport, muscle contractions and biosynthesis of molecules. 2. What role does glucose play in cellular respiration? Glucose provides the chemical energy that is converted to ATP (also chemical energy) during cellular respiration. 3. Why is cellular respiration important for all living things, including plants? Cellular respiration is important for all living things because it provides the energy in the form of ATP that is necessary to carry out basic cellular processes.

17. 4. Photosynthesis vs Cellular Respiration Photosynthesis Respiration Again, they are almost exact opposites!

18. “Respiration During Exercise” 1. Your cells need a steady supply of ATP when you are sitting, but what happens when you exercise? Cells need more energy so the rate of cellular respiration increases.

19. “Respiration During Exercise” 2. What happens to carbon dioxide levels in your blood and your breathing rate when you exercise? CO 2 levels increase, so our breathing rate increases to rid our body of the excess CO 2. 3. Why do they do this (increase the breathing rate)? To deliver oxygen to the bloodstream more quickly.

20. #4. What role do aerobic and anaerobic respirations play in your muscles? Rapid breathing brings in more oxygen to muscle cells that have been lacking oxygen and going through fermentation.

21. #5.Why do your muscles burn when you run? Why do you get sore the following day?

24. Who likes STEAK?! White meat in turkey/chicken? Not very red-not used much! Dark meat? Found in the LEGS, which they use, so lots of muscle that had blood! MUSCLE!

25. Why is aerobic conditioning advantageous to athletes? Your answer should talk about ATP and mitochondria: (1) During aerobic conditioning, muscle cells produce more mitochondria. This provides the potential for more efficient use of O 2 & greater release of energy (ATP) during heavy use of muscles. (2) Improves blood circulation to the muscles.