1. BSC 2011L Photosynthesis Today’s Lab... 1.) Turn in library worksheet. 2.) Quiz # 1 3.) Photosynthesis Lab 4.) Due next wk -- abstract (15 pts) -- graphs (10 pts) 5.) Quiz #2 next week, Ann teaches

2. Michelle C 4 Kristen H. 0.5 Allison H. 1 Alex H. 0.5 Michelle H. 5 Dallas J. 2 Sheena M. 2 Michael D. 2 David E. 2.5 Dahlia K. 3.5 Brian M. 2.5 Joseph M. 1 Anna P. 3

4. Cyanobacteria

5. CYANOBACTERIA 2.7 billion years old

6. An overview of photosynthesis

7. L eaves are structured to facilitate photosynthesis

9. The site of photosynthesis in a plant

12. Tracking atoms through photosynthesis Carbon dioxide Water Glucose Water Oxygen

13. Interaction of light with chloroplasts

14. Light DEPENDENT reactions Photosystem I & Photosystem II

20. Light independent reaction – making the donuts! Light dependent reaction – capturing energy from the sun ?

21. LIGHT REACTION DARK REACTION *note: “dark reactions” = “light independent” reaction = Calvin cycle = carbon fixation  happens in dark and light

23. DCPIP used in place of NADP+.

26. The electromagnetic spectrum

27. Photosynthetic wavelengths

28. LET’S HYPOTHESIZE... I.) Wavelength II.) Light intensity

31. 0.5 ml 0.5 ml 0.5 ml 1.7 ml 4.2 ml 1.7 ml wavelength wavelength wavelength What to put in cuvettes...

33. Thylakoid suspensions are exposed for two (2) minutes, then light can be shut off while absorbencies are measured.

39. Example of a proper graph... * Ensure that axes are properly labeled, with units specified, even if there are no units (AU=arbitraty units) * Do not connect the points on the graph with lines; draw a best-fit line through the data set. * The independent variable (the variable you manipulate) should always be on the X-axis and the dependent variable (the read out from the instrument) should be on the Y-axis. * Include a descriptive title that explains what kind of plot it is, the technique that was used, which substance was measured, and what instrument was used to measure it. * IMPORTANT: Titles should not include (or be) "Plot of...", "Graph of...", or "...over a range of data points." - Be concise, but complete. * Do not plot too many data sets on a single graph - make multiple graphs if required. WRITE A DETAILED CAPTION FOR EACH GRAPH see -- http://abacus.bates.edu/~ganderso/biology/resources/writing/HTWtablefigs.html