photosynthesis process of plants using light energy to produce glucose to put together using light
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PhotosynthesisPhotosynthesis
Process of plants Process of plants using light energy using light energy to produce glucoseto produce glucose
To put together To put together using lightusing light
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Chemical EquationChemical Equation
COCO22 + H + H22O O C C66HH1212OO6 6 + O+ O22
Requires lightRequires light Requires chloroplastsRequires chloroplasts
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ReactantsReactants
COCO22 + H + H22OO
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Carbon Dioxide (COCarbon Dioxide (CO22))
About .03% of About .03% of the atmospherethe atmosphere
SourcesSources– RespirationRespiration– BurningBurning– DecompositionDecomposition
Enters plant leaf Enters plant leaf through stomatethrough stomate
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Water (HWater (H22O)O)
Enters the plant Enters the plant root system (root root system (root hairs) by osmosishairs) by osmosis
Travels through Travels through xylem from the from the roots to the roots to the leavesleaves
Transpiration- Transpiration- evaporation of evaporation of water from leaveswater from leaves
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EnergyEnergy
LightLight- small portion - small portion of the EM spectrumof the EM spectrum
ROY G. BIVROY G. BIV Blue, Violet, Red Blue, Violet, Red
used most by leafused most by leaf
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ChloroplastsChloroplasts
Photosynthetic Photosynthetic organelles found in organelles found in certain leaf cells, certain leaf cells, contains the contains the pigmentspigments
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Primary PigmentsPrimary Pigments
Visible during the Visible during the growing seasonsgrowing seasons
– chlorophyll a- chlorophyll a- greengreen
– chlorophyll b- chlorophyll b- greengreen
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Secondary PigmentsSecondary Pigments
Not visible during Not visible during the growing the growing season season
Hidden by the Hidden by the primary pigmentsprimary pigments
Become visible in Become visible in the fall of the the fall of the yearyear
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Secondary PigmentsSecondary Pigments
CarotenoidsCarotenoids– Carotene- orangeCarotene- orange– Xanthophyll-yellowXanthophyll-yellow– Anthocyamin- redAnthocyamin- red
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Chloroplast StructureChloroplast Structure
Grana- stack of Grana- stack of tiny discs, contain tiny discs, contain the chlorophyllthe chlorophyll
– light reactionslight reactions take place here, take place here, light is requiredlight is required
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Chloroplast StructureChloroplast Structure
Stroma- contains Stroma- contains enzymesenzymes– dark reactionsdark reactions
take place here, take place here, light not requiredlight not required
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ProductsProducts
CC66HH1212OO6 6 + O+ O22
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Glucose (CGlucose (C66HH1212OO66))
Formed in the Formed in the chloroplastschloroplasts
Transported Transported through vessels through vessels called phloemcalled phloem
Stored as Stored as carbohydrates in carbohydrates in roots, stems, roots, stems, leaves, fruit, leaves, fruit, seeds, etcseeds, etc
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Oxygen (OOxygen (O22))
Released through Released through the stomata into the stomata into the atmospherethe atmosphere
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Absorption of ChlorophyllAbsorption of Chlorophyll
P 115, Figure 6-5P 115, Figure 6-51. Look at chlorophyll a, what 1. Look at chlorophyll a, what
color of light is absorbed the color of light is absorbed the most? What is its wavelength?most? What is its wavelength?
2. Look at chlorophyll b, what 2. Look at chlorophyll b, what color of light is absorbed the color of light is absorbed the most? What is its wavelength?most? What is its wavelength?
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Absorption of ChlorophyllAbsorption of Chlorophyll
3. Look at the carotenoids, what 3. Look at the carotenoids, what color of light is absorbed the most? color of light is absorbed the most? What is its wavelength?What is its wavelength?
4. Why are there no peaks between 4. Why are there no peaks between 540 nm and 640 nm?540 nm and 640 nm?
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Absorption of ChlorophyllAbsorption of Chlorophyll
5. What colors are reflected most by 5. What colors are reflected most by the pigments?the pigments?
6. Arrange the colors in the spectra 6. Arrange the colors in the spectra for chlorophyll a & b in the order of for chlorophyll a & b in the order of their visiblity. List the most visible their visiblity. List the most visible 11stst
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Absorption of ChlorophyllAbsorption of Chlorophyll
1. chlor. a abs- violet, 425 nm1. chlor. a abs- violet, 425 nm 2. chlor. b abs- blue, 460 nm2. chlor. b abs- blue, 460 nm 3. carot. Abs- blue-green, 475 nm3. carot. Abs- blue-green, 475 nm 4. The colors are being reflected.4. The colors are being reflected. 5. refl. most- green, yellow, orange5. refl. most- green, yellow, orange 6. order of visibility- 6. order of visibility-
green, yellow, orange, red, violet, blue green, yellow, orange, red, violet, blue
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All images- Clip ArtAll images- Clip Art