the start of a food chain. energy from the sun comes to earth as light
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The start of a food chain. Energy from the sun comes to earth as light. Algae and Green leaves have cells which contain a green pigment called chlorophyll. Chlorophyll in the cells of living algae will trap some of the energy from sunlight. - PowerPoint PPT PresentationTRANSCRIPT
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The start of a food chain. Energy from the sun comes to earth as light.
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Algae and Green leaves have cells which contain a green pigment called chlorophyll
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Chlorophyll in the cells of living algae will trap some of the energy from
sunlight
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Chlorophyll in the cells of living leaves will trap some of the energy from sunlight
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Chlorophyll inside leaf cells. The chlorophyll packets are called chloroplasts
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The chloroplasts is where food is produced… (where sugar is made )
You are looing at the place where most food chains start!
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During Photosynthesis the energy from sunlight is trapped by green chlorophyll and then the energy is stored inside a carbohydrate called
GLUCOSE SUGAR
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This process is called PHOTOSYNTHESIS
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Glucose sugar is made out of Water and Carbon Dioxide
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A leaf is designed to bring together 3 ingredients. CO2, H20, and light
• co
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Air Enters and leaves a leaf through tiny openings called Stomata. CO2 in…. O2 OUT
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Water is carried in small tubes from root to leaf. We see the tubes as leaf veins
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Thin leaves allow light to penetrate and hit chlorophyll
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Photosynthesis is all about making a sugar called GLUCOSE … C6 H12 06
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The equation for Photosynthesis
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Energy from the sun is now stored in the sugar Energy is measured in calories
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Made from CO2 and Water… with sunlight stored inside! ( calories )
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During Photosynthesis… carbon dioxide is removed from the air and used to make sugar.
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During Photosynthesis oxygen is released to the air
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PLANT CELLS run on energy stored in glucose sugar
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Animal Cells run on the energy stored in Glucose
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Model of a Glucose sugar molecule.C6 H12 O6
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The sun’s energy is now stored in the bonds of glucose sugar
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GLUCOSE is THE SUGAR•We can make all other
foods ( Fats / Oils / Protein / Starch etc.. From Glucose sugar. This means that a food chain is driven by Glucose!
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STARCH IS GLUCOSEmolecules hooked together like train cars
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STARCH
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The only way energy gets into the bonds of glucose on the earth’s
surface
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