Cellular Respiration Ch. 9 Mr. Victor M. Galdo Science Dpt. BTW Glucose CytoplasmMitochondrion Electron Transport Chain Glycolysis Krebs Cycle Electrons carried in NADH Pyruvic acid Electrons carried in NADH and FADH 2

Figure 6.3 Sunlight energy EcosystemPhotosynthesis (in chloroplasts) Glucose Oxygen Carbon dioxide Cellular respiration (in mitochondria) Water for cellular work Heat energy

Cellular Respiration Videoclip Cellular Respiration--Releasing stored energy by breaking down glucose SBiologyResources.htmCellular Respiration--Releasing stored energy by breaking down glucose SBiologyResources.htm

A common fuel molecule for cellular respiration is glucose This is the overall equation for what happens to glucose during cellular respiration This is the overall equation for what happens to glucose during cellular respiration The Overall Equation for Cellular Respiration (P ) Unnumbered Figure Glucose2.Oxygen 3.Carbon dioxide 4.Water5.Energy

Chemical Pathways (P ) 6O2 + C6H12O6 → 6CO2 + 6H2O + E 6O2 + C6H12O6 → 6CO2 + 6H2O + E 6. is the process that releases E by breaking down glucose and other food molecules in the presence of is the process that releases E by breaking down glucose and other food molecules in the presence of 7.. A 8. is the amount of E needed to raise the T of 1 g of water 9. A 8. is the amount of E needed to raise the T of 1 g of water 9.. Food serves as a source of raw 10. which organisms use to synthesize new 11.. Food serves as a source of raw 10. which organisms use to synthesize new 11.. Cellular respiration O calorie 1° C 12. Breathing 15.Cellular respiration 13. Lungs 14. Muscle cells materials molecules

Chemical Pathways (cont.) (P ) 16. is the process in which one molecule of 17. is broken in half, producing two molecules of 18., a 3-C compound. 16. is the process in which one molecule of 17. is broken in half, producing two molecules of 18., a 3-C compound. Does glycolysis requires the input of energy?19. If so what is the name of the molecule that provides the E? 20. Does glycolysis requires the input of energy?19. If so what is the name of the molecule that provides the E? 20. Glycolysis glucose pyruvic acid Yes, it does. Adenosine Triphosphate or ATP 21. glucose 22. pyruvic acid

Chemical Pathways (cont.) (P ) Glycolysis captures two pairs of high-E e¯’s with the carrier 23.. Glycolysis captures two pairs of high-E e¯’s with the carrier 23.. Glycolysis does not requires 24., so it supplies 25. energy to cells when 26. is not available. Glycolysis does not requires 24., so it supplies 25. energy to cells when 26. is not available. The two main types of 27. are: 28. and 29.. The two main types of 27. are: 28. and 29.. NAD+ oxygen chemical fermentation alcoholiclactic acid

Fermentation Alternative means of NAD + regeneration

Chemical Pathways (cont.) (P ) In the absence of O 30. and a few other microorganisms use 31., forming 32. and 33. as wastes. In the absence of O 30. and a few other microorganisms use 31., forming 32. and 33. as wastes. Animals cannot perform 34., but some cells, such as human 35. cells, can convert 36. into 37. acid. This is called 38.. Animals cannot perform 34., but some cells, such as human 35. cells, can convert 36. into 37. acid. This is called 38.. yeast alcoholic fermentation ethyl alcoholCO 2 alcoholic fermentation muscle glucoselactic lactic acid fermentation

Alcoholic Fermentation vs. Lactic Acid Fermentation (P ) (a) Alcoholic fermentation –This occurs in Ethyl alcohol Lactic acid 2 Pyruvic acid 2 Pyruvic acid Glycolysis 2 CO 2 released 2 NAD  + 2 H  (b) Lactic acid fermentation – This occurs in 2 ADP+ 2 2 ATP Glucose 2 NAD  39. plants 41. animals

QUESTIONS & SUMMARY Using the High School Question Task Cards, write five questions about the notes. Write your summary for the notes.

NOTEBOOK: OUTPUT 1) Fill in the blanks and complete the list with the 42 key words and concepts while you read the book.

Cellular Respiration: Word List 1. Glucose 2. Oxygen 3. Carbon Dioxide 4. Water 5. Energy 6. Cellular respiration 7. O 8. Calorie 9. 1° C 10. Materials 11. Molecules 12. Breathing or respiration 13. Lungs 14. Muscle cells or cells 15. Cellular respiration 16. Glycolysis 17. Glucose 18. Pyruvic acid 19. Yes, it does 20. Adenosine triphosphate or ATP 21. Glucose 22. Pyruvic acid 23. NAD+ 24. Oxygen 25. Chemical 26. Oxygen 27. Fermentation 28. Alcoholic 29. Lactic acid 30. Yeast 31. Alcoholic fermentation 32. Ethyl alcohol 33. CO2 34. Alcoholic fermentation 35. Muscle 36. Glucose 37. Lactic 38. Lactic acid fermentation 39. Plants Ethyl alcohols 41. Animals 42. Lactic acid

Fermentation Alternative means of NAD + regeneration

The Krebs Cycle and Electron Transport (p. 226 – 232) During the Krebs cycle, pyruvic acid is broken down into CO 2 in a series of E extracting reactions. During the Krebs cycle, pyruvic acid is broken down into CO 2 in a series of E extracting reactions. The electron transport chain uses the high-E electrons from the Krebs cycle to convert ADP into ATP. The electron transport chain uses the high-E electrons from the Krebs cycle to convert ADP into ATP. The products of photosynthesis (glucose + O 2 ) are similar to the reactants of cellular respiration (glucose + O 2 ). The products of photosynthesis (glucose + O 2 ) are similar to the reactants of cellular respiration (glucose + O 2 ). The products of cellular respiration (CO 2 + H 2 O) are the reactants of photosynthesis (CO 2 + H 2 O) The products of cellular respiration (CO 2 + H 2 O) are the reactants of photosynthesis (CO 2 + H 2 O) REACTION: REACTANTS → PRODUCTS CELLULAR Glucose + O 2 → CO 2 + H 2 O + ATP (E) RESPIRATION: PHOTOSYNTHESIS: CO 2 + H 2 O Glucose + O 2 light

Flowchart Section 9-2 Glucose (C 6 H ) + Oxygen (0 2 ) Glycolysis Krebs Cycle Electron Transport Chain Carbon Dioxide (CO 2 ) + Water (H 2 O) Cellular Respiration

Pi adenosine Pi + adenosine Pi Enzymes Energy from respiration Energy Rich bond formed

ATP production – summary 36 ADP + 36 Pi = 36 ATP glucose pyruvic acid carbon dioxide + water 2 ADP + 2 Pi = 2 ATP

Figure 9–2 Cellular Respiration: An Overview From food to ATP (Video Clip)From food to ATP Glycolysis and Cellular Respiration (Video Clip) SBiologyResources.htmGlycolysis and Cellular Respiration SBiologyResources.htm Site for resources Section 9-1

QUESTIONS & SUMMARY Using the High School Question Task Cards, write five questions about the notes. Write your summary for the notes.

NOTEBOOK: OUTPUT 1) Copy and complete the table that compares aerobic and anaerobic respiration.

OUTPUT : Copy and complete the table Title: ?????????????? Aerobic respiration Anaerobic Respiration in animals in plants and yeast Oxygen required? Oxygen required? Occurs in (part of the cell) Glycolysis occurs ATP yield Glucose completely broke down? Glucose completely broke down? End products

Comparison of aerobic and anaerobic respiration Aerobic respiration Anaerobic Respiration in animalsin plants and yeast Oxygen required? yesno Occurs in (part of the cell) mitochondriacytoplasm Glycolysis occurs yes ATP yield 38ATP/36NET4ATP/2NET Glucose completely broke down? yesno End products CO 2 and H 2 OLactic acidEthanol and CO 2

SUMMARY FOR CELLULAR RESPIRATION -Respirationhttp:// -Respiration