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DO YOU SEE THE LIGHT???

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Based on the visible light spectrum below, which part of the spectrum has the longest wavelength: 1.Red light 2.Yellow light 3.Violet light 1234567891011121314151617181920 212223242526272829

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Based on the visible light spectrum below, which color of the spectrum has the most energy: 1.Red light 2.Yellow light 3.Violet light

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WHY RED????

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BACK TO THE NOTES

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Based on the graph below, what color is this object: 1.Red 2.Orange 3.Yellow 4.Blue 5.Violet 1234567891011121314151617181920 212223242526272829

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Based on the graph below, what color is this object: 1.Red and blue/green 2.Orange and yellow 3.Yellow and blue 4.Blue and violet 1234567891011121314151617181920 212223242526272829

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LET’S SEE HOW THE LAB WORKED

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Why did some molecules move up the paper really far while others remained close to the bottom of the paper?? CHLOROPHYLL B = Large molecule with two polar side groups. Will move the slowest. This is army green in color. CHLOROPHYLL A = Also a large polar molecule with one polar side group. This will move the second slowest. This is a blue/green color. XANTHOPHYLL = It’s yellow BETA CAROTENE = Small molecule with no polar side groups. This is able to move up the paper the fastest. It’s orange.

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Chlorophyll b

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Chlorophyll B Chlorophyll A Xanthophyll Carotene DID YOUR RESULTS LOOK LIKE THIS???

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These chromatograms show chlorophyll b at the bottom, followed by chlorophyll a, xanthophylls, and carotenes. Carotenes Xanthophylls Chlorophyll a Chlorophyll b

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These represent the pigments that are found in the spinach leaves. What function do these pigments serve in plants??? Why does spinach have more than just one pigment? Would a plant lacking pigment (white) be able to survive? WHY?

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Below is the absorption spectrum for the spinach. Discuss with your partner the most useful/absorbed part of the visible light spectrum and the least useful/absorbed part of the spectrum.

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Plants need to be able to absorb light for the process of photosynthesis. The pigments in the plant are like buckets used to capture/collect this solar energy.

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Based on the graph, what colors are best absorbed by this plant: 1.Green and orange 2.Red and violets 3.Violet and green 4. Green and reds

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Based on the graph, what color is this plant: 1.Green 2.Red 3.Violet

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Look at the two graphs below. One shows the absorption spectrum for the spinach leaves. The other shows the rate of photosynthesis. Do you see a relationship between the two graphs?? Rate of Photosynthesis

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Let’s combine both graphs! Where is the rate of photosynthesis the highest???

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Based on the graph below, which color light is best absorbed by plants for photosynthesis 1.Red 2.Yellow 3.Green 4.Orange 5.Violet

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Based on the graph below, which color light is least absorbed by plants for photosynthesis 1.Red 2.Yellow 3.Green 4.Orange 5.Violet

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NOW DO YOU SEE THE LIGHT???

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Learning Target 12.Compare & contrast the structure & function of mitochondria & chloroplast 15. Determine what factors affect the process of photosynthesis.

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