Understanding Photosynthesis and Cellular Respiration Processes

1. Bell Work 3/10 • List the three major things needed for the process of photosynthesis. • Take a KWL sheet from the front cart

2. Chapter 8:Photosynthesis Page 200

3. Big Ideas for today • Explain where plants get the energy they need to make food • Describerole of ATP in cellular activities • State the overall equation for photosynthesis

4. Energy • Energy Forms: • Light • Heat • Electricity • Chemical Compounds • (Ex: Lighting a candle releases energy)

5. ATP • Cellular energy is stored in the form of Adenosine Triphosphate (ATP) • Compound structure:

7. How do Cells use the Energy? • To use ATP a bond must be broken between the 2nd and 3rd Phosphates (P. 203) ADP Adenosine Diphosphate

8. Stoma: opening in leaves that allow CO2 & O2 to cross p. 596

9. Photosynthesis • Photosynthesis is a series of reactions that use light energy from the sun to convert (change) water and carbon dioxide into sugar and oxygen • Equation: 6H2O + 6CO2 ----------> C6H12O6+ 6O2 • Plants use the sugars to make carbohydrates like starches

10. End of Day 1 Notes

11. Bell Work 3/12 • Write out the chemical equation for photosynthesis and label each part. • Take out your notes.

12. Photosynthesis Equation

13. 8-3 Reactions of Photosynthesis • Photosynthesis occurs inside a Chloroplasts • Structures inside a Chloroplast: • Thylakoids: membrane that contains chlorophyll & other pigments that collect light • Granum: A stack of thylakoids • Photosynthesis has 2 parts: • 1 part uses light to produce ATP & NADPH • 1 part does not use light = CALVIN CYCLE; Cycle uses ATP & NADPH to make high-energy sugars (carbohydrates) (ex: glucose)

17. Factors that affect Photosynthesis • Water: not enough = slows down photosynthesis • Temperature: Best between 0 °C - 35 °C (32 °F - 95 °F) • Light intensity: more light = more photosynthesis

18. Overall Outcome • Photosynthesis is storing energy!!!

19. Analyzing Data • Look at the Analyzing Data section on page 213 • Read both introduction paragraphs, look at the graph and then answer questions 1-4

20. Bell Work 3/13 • Describe where both photosynthesis and cellular respiration take place within the cell. • Take out your notes from yesterday.

21. Goals and Objectives Objective: • Compare and contrast the processes of photosynthesis and cellular respiration. • Photo. Equation vs Respiration Equation • Cellular Respiration Lab

23. 9-1 Cellular Respiration (p. 221) • Takes place in the Mitochondria of the cell • Process that releases Energy Cristae

24. Cellular Respiration • Other names this process goes by: • Krebs Cycle • Lactic Acid Fermentation • Glycolysis • Uses 2 Pathways: • Aerobic = Requires O2 • Anaerobic = Does Not require O2

25. Cellular Respiration • It is a series of chemical reactions as well. • Equation: C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy (as ATP) IT RELEASES ENERGY!!!!!!

26. Quick vs. Long Term Energy • Our cells stores small amounts of ATP so we can respond to sudden dangers (BURST OF ENERGY); only last a few seconds; cells build up lactic acid (feel the burn!!!) • Long-Term Energy requires cellular respiration to make a constant supply of ATP; Cells do this by using carbohydrates stores in the body (15-20 minutes); after that the body uses fat stores

27. Bell Work 3/18 • In your own words, describe why leaves change color in the fall. • Find your Photosynthesis/Cellular Respiration comparison sheet we started making on Friday. (The folded piece of paper that we cut)

28. Goals and Objectives Objective: • Understand the processes taking place inside a plant cell when the leaves are changing color. Goal: • Correctly identify the names and colors of the accessory pigments

29. Leaf Pigments • Carotene: Yellow Orange • Xanthophylls :Light yellow • Chlorophyll A :Blue green • Chlorophyll B: Yellow green • Anthocyanin: Red • The heavier the pigment the slower it migrates up the paper; The lighter the pigment the faster it migrates

30. Create a 2 part foldable comparing/contrasting Photosynthesis and Cellular Respiration • 1. Fold 1 time hamburger • 2. Cut half way to the crease • 3. Write “Photosynthesis” on bottom Left flap. Write “Cellular Respiration” on bottom Right flap. • 4. Starting on Left, Top, inside flap write the word “Function:”. Under it write “Location:”. Under it write “Reactants”. Under it write “Products:”. Under it write “Equation:”

31. Complete all needed information for both photosynthesis and cellular respiration • On the Front, left cover you will draw a large picture of a Chloroplast and label the following on it: • Thylakoids • Granum • Chlorophyll • On the Front, Right cover you will draw a large picture of a Mitochondria and label the following on it: • Cristae

32. Chromatography Lab • Today we will be using Paper Chromatography to determine the specific types of leaf pigments found in a Spinach leaf. • There are several types of pigments found in leaves….

33. How to conduct the Chromatography Experiment • https://www.youtube.com/results?search_query=leaf+chromatography+experiment&oq=leaf+chro&gs_l=youtube.3.0.0l2j0i5.2459529.2464726.0.2466193.31.19.0.0.0.8.222.1181.17j0j1.18.0...0.0...1ac.1.gKMApiY8eY4

34. How Cells Obtain Energy videoAnswer guided questions https://www.youtube.com/watch?v=i8c5JcnFaJ0