1. Happy FRIDAY!!! 9/23/2011 1.Think back to yesterday...what is photosynthesis??? 2.What is the difference between light- dependent and light-independent reactions? 3.What by-product of photosynthesis do we need?? Today: 1.Quick review of photosynthesis 2.Respiration notes 3.QUIZ TUESDAY!

2. Remember, Photosynthesis?

3. Now, we’re switching gears to RESPIRATION!

4. 4.4 KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen!

5. makes ATP by breaking down sugars! Part of it’s aerobic: needs O 2Part of it’s aerobic: needs O 2 & occurs in mitochondria mitochondrion animal cell

6. Cellular respiration!! Converts chemical energy in nutrients to chemical energy stored in ATPConverts chemical energy in nutrients to chemical energy stored in ATP Why do we need ATP?Why do we need ATP? –Releases energy for cell’s metabolic processes -active transport, protein synthesis, muscle contraction

7. ATP!! WHERE do WE get ATP from?WHERE do WE get ATP from? –Any organic molecule/nutrient –carbs, lipids, and proteins -broken down for Energy (ATP)

8. Cellular Respiration Basics: ConvertsConverts chemical energy in nutrients to chemical energy stored in ATP chemical energy stored in ATP Nutrients + O 2  H 2 O + ATP + CO 2Nutrients + O 2  H 2 O + ATP + CO 2

9. So, what’s the PURPOSE of cellular respiration???

11. Glycolysis –breaks down glucose! –into two 3C molecs of pyruvic acid –Anaerobic (No O 2 ) –In cytoplasm –Makes 2 ATP

12. p. 114 - fill out your diagram! You can do it! Focus!!! 6H O 2 6CO 2 6O 2 mitochondrion matrix (area enclosed by inner membrane) inner membrane ATP energy energy from glycolysis 1 2 4 3 and Krebs Cycle

13. You ALREADY know #2... What was the product of glycolysis?

14. Mitochondria Matrix 6 O 2 Energy (ATP & others) 6 CO 2 + ATP 6 H 2 O ATP ATP TWO 3 C Molecules of pyruvic acid of pyruvic acid Krebs cycle ATP breaks down glucose! into two 3C molecs. Anaerobic (No O 2 ) In cytoplasm Makes 2 ATP ElectronTransportChain

16. Cellular respiration is like a mirror image of photosynthesis! Krebs Cycle

17. C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O + ATP The reactants in photosynthesis are the same as the products of cellular respiration.The reactants in photosynthesis are the same as the products of cellular respiration. 6CO 2 + 6H 2 O + energy (solar)  C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + energy (solar)  C 6 H 12 O 6 + 6O 2

18. C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O + ATP Reactants?Reactants? Products?Products? Is glucose the only molecule your cells can use to make ATP?Is glucose the only molecule your cells can use to make ATP? What does the cell use ATP for?What does the cell use ATP for?

19. 6H O 2 6CO 2 6O 2 mitochondrion matrix (area enclosed by inner membrane) inner membrane ATP energy energy from glycolysis 1 2 4 3 and Oh Respiration!!!! –Reactants? –glucose and oxygen –Products? –carbon dioxide, water, ATP –How many glucose used? –1 glucose molecule –How many oxygen used? –6 oxygen molecules –Energy released from glucose is used to make WHAT? –~34-36 molecules of ATP per glucose molecule! Electron Transport

20. Hmm......

21. Don’t Forget… GREEN FAIR SUNDAYGREEN FAIR SUNDAY

22. LAB: Calorimetry Say WHAT??Say WHAT?? –Ties in calories & energy to the producers that give it to us...through photosynthesis! Let’s Read it together!Let’s Read it together! –Introduction...helps YOU understand WHY we’re doing it –Objective...the POINT of the lab –Materials...I’ve collected them for you –Materials...I’ve collected them for you –SAFETY —SUPER-IMPORTANT IN TODAY’S LAB, ABSOLUTELY NO HORSEPLAY—YOU MUST FOLLOW ALL DIRECTIONS AND YOU MUST STAY SEATED WITH YOUR GROUP FOR THE ENTIRE LAB. –NO EXCEPTIONS!

23. Turn to page 116Turn to page 116 Read “Interpret a Graph” at the bottom.Read “Interpret a Graph” at the bottom. Answer #1 and #2Answer #1 and #2 Happy Wednesday! March 18 th Today: 1.Quiz 2.Fermentation notes 3.Review for Test

24. Write this on that piece of paper where you wrote about Light-Dep/Light-Indep Reactions of Photosynthesis. Write this on that piece of paper where you wrote about Light-Dep/Light-Indep Reactions of Photosynthesis. Cellular Respiration Summary: To take energy in glucose & make ATP,To take energy in glucose & make ATP, –break down glucose slowly –capture energy in stages! 1.Glycolysis – - reactions in cytoplasm - glucose  pyruvic acid + ATP

25. Almost there! Almost there! 2.Aerobic respiration (O 2 present) a. Kreb’s cycle: a. Kreb’s cycle: pyruvic acid into mitochondria  CO 2 + 2 ATP pyruvic acid into mitochondria  CO 2 + 2 ATP b. Electron transport chain b. Electron transport chain - lots of rxns, ends with H 2 O + ATP - lots of rxns, ends with H 2 O + ATP - most ATP made here!! (36 ATPs!!) - most ATP made here!! (36 ATPs!!)

26. 4.6 KEY CONCEPT Fermentation allows the production of a small amount of ATP when there’s no oxygen.

27. Remember : AEROBIC respiration needs O 2 ! Fermentation occurs when NO O 2 !! So it’s called...

28. Fermentation Basics: Anaerobic process Anaerobic process After Glycolysis when no O 2 After Glycolysis when no O 2 Not efficient Not efficient fewer ATP made (vs. aerobic) fewer ATP made (vs. aerobic)

29. 2 Types of Fermentation 1.Lactic acid Fermentation Our muscles 2.Alcoholic Fermentation Yeast, some bacteria

30. – NO O 2 -muscle tissues during exercise, when no O 2 -Glycolysis  pyruvic acid  lactic acid -Little energy released (NADH) -Good Source of energy when no O 2, but won’t last long!!! Lactic Acid Fermentation

31. ( (yeasts and some bacteria) glycolysis  pyruvic acid  alcohol + CO 2 Little energy is released!! Alcoholic Fermentation

32. Uses of fermentation: food production!!! –yogurt –cheese –bread

33. Fermentation of the Brain!! SO Much Stuff—Test Tomorrow… DUE TOMORROW Review Sheets, Vocab DUE TOMORROW!!!! 1.What is the difference between aerobic and anaerobic respiration? 2.What is glycolysis?? 3.What is cell respiration?? 4.Where does respiration take place?? 5.What are the products of respiration?? 6.How are respiration and fermentation related? 7.What are the 2 types of fermentation?? 8.Give an example of each!!!