NOVEMBER DAILY PERFORMANCE RUBRIC Name Period: Each Item is worth 2 points for a total of 10 points possible per day - This will be a TEST grade!

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1 NOVEMBER DAILY PERFORMANCE RUBRIC Name Period: 1 Each Item is worth 2 points for a total of 10 points possible per day - This will be a TEST grade! Date On Time to Class Have Biology Notebook Start Do Now Quickly and Quietly Have Pencil and Blank Paper Have Homework Ready to Turn In Total Sign off Date : On Time to Class Have Biology Notebook Start Do Now Quickly and Quietly Have Pencil and Blank Paper Have Homework Ready to Turn In Total Sign off Date: On Time to Class Have Biology Notebook Start Do Now Quickly and Quietly Have Pencil and Blank Paper Have Homework Ready to Turn In Total Sign off Date: On Time to Class Have Biology Notebook Start Do Now Quickly and Quietly Have Pencil and Blank Paper Have Homework Ready to Turn In Total Sign off To Do Now Question Answer: To Do Now Question Answer: To Do Now Question Answer: To Do Now Question Answer: Date : On Time to Class Have Biology Notebook Start Do Now Quickly and Quietly Have Pencil and Blank Paper Have Homework Ready to Turn In Total Sign off To Do Now Question Answer:

2 Chapter 8 Vocabulary Words - Photosynthesis 2 1. ATP 2. Accessory Pigment 3. ADP 4. Aerobic 5. Alcohol 6. Anaerobic 7. Bromothymol Blue 8. Calvin cycle 9. Chlorophyll 10. Chloroplast 11. CO Dark Reactions 13. Electron transport chain 14. Equation 15. Fermentation

3 Chapter 8 Vocabulary Words - Photosynthesis Glucose 17. Glycogen 18. Glycolysis 19. Krebs cycle 20. Lactic acid 21. Light reaction 22. NADH 23. Photosynthesis 24. Pigment 25. Reactants 26. Respiration 27. Yeast

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16 16 Photosynthesis Chapter 8 Overview 1. What does photosynthesis produce with light energy? 2. Define autotrophs 3. List four things that are necessary for photosynthesis. 4. Give the equation for photosynthesis. 5. Name the two phases. 6. Where do these phases occur?

17 Describe what happens to each part of the light phase. 17 light energy - absorbed energy - oxygen - hydrogen - 7. Describe what happens in each part of the dark phase. ATP NAPDH 2-8. Give another name for the dark phase. 9. List two things that affect the rate of photosynthesis. 10. What is a biochemical pathway?

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20 Hidden Plant Chromatography Objectives: Prepare an extract of plant tissue (e.g., leaves, flowers). Apply the technique of paper chromatography as a method for separating individual plant pigments contained in plant tissue extracts containing pigment blends. Describe the application of this technique to the study of plant pigments and develop related testable questions. Generate ideas about ways to improve the technique to yield better results. 20 Materials Soft green leaves Scissors Mortar and pestle or food processor Glass or ceramic cup Isopropyl alcohol Flat coffee filters Tape Pencil or straw Procedures 1. Use the scissors to cut up enough leaves to make a ¼ cup of pieces. 2. Use the food processor or mortar and pestle to grind the leaves into a fine pulp. 3. Pour the pulpy leaves into the cup. What color do you see? 4. Pour enough isopropyl alcohol over the leaves to cover them. Stir. Why can t you use water as solvent? 5. Cut out strip of coffee filter paper about 6 inches long and 1 inch wide. 6. Attach the strip to the pencil with a piece of tape. Make sure the bottom of the strip hangs straight. 7. Adjust the length of the filter paper strip so that the bottom just touches the green liquid in the cup. 8. Checking every couple minutes, wait for the band of solvent to migrate to the top of the filter paper. Different colored bands should become evident along the strip. 9. Study your strip, and try to identify the pigments. Your results will vary depending on the types of leaves that you chose and how careful your leaf chromatography technique was. You might not see all the pigments. An orange-colored band is likely to be near the top. Below that, you should see a yellowish band, a blue-green band, and a greenish-yellowish band, respectively.

21 Hidden Plant Chromatography Photosynthesis, you might remember, is the process in which plants convert light energy from the sun to chemical food energy. Brightly colored pigments in leaves are essential to the first steps of light absorption, with chlorophyll being the most important pigment. There are two main types of chlorophyll: chlorophyll A, which is bluish-green, and chlorophyll B, which is yellowishgreen. During most of the growing season, leaves contain more chlorophyll than any other pigment, making them appear green. In the fall, however, chlorophyll begins to break down, and the other pigments, which have been there all along, are finally revealed: we see pretty yellow and orange fall leaves. The yellow pigments in leaves are called xanthophylls, and the orange pigments are called carotenoids (carotenoids are easy to remember because they are orange like a carrot!). 21

22 DATA TABLE Broughton High School of Wake County 22 COLOR of felt marker OBSERVATIONS Describe and sketch the colors Measurement- Distance the solvent traveled from the pencil line (cm) Df Measurement- Distance the colors traveled from the pencil line (cm) Ds Rf value: Ds/Df (decimal) 1.BLACK 2. BROWN Analysis: Answer these on another sheet of paper in ink or type. (Rewrite questions.) 1. Define chromatography. 2. With the black marker, how many different colors can you identify? Describe this. 3. Why do you see different colors at various locations on the filter paper? 4. Compare and contrast the colors in the black and/or brown markers on the filter paper with one other marker that is not black/brown. 5. How is the technique of chromatography used to separate a mixture? 6. Is chromatography a physical or chemical change? Explain! Conclusion: 1. Describe what you have learned from this lab. 2. Research different types of chromatography to understand how it is used. Rewrite this in your own words. 3. Describe what you have learned from this lab. 4. Research different types of chromatography to understand how it is used. Rewrite this in your own words.