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The start of a food chain. Energy from the sun comes to earth as light.

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Presentation on theme: "The start of a food chain. Energy from the sun comes to earth as light."— Presentation transcript:

1 The start of a food chain. Energy from the sun comes to earth as light.

2 Algae and Green leaves have cells which contain a green pigment called chlorophyll

3 Chlorophyll in the cells of living algae will trap some of the energy from sunlight

4 Chlorophyll in the cells of living leaves will trap some of the energy from sunlight

5 Chlorophyll inside leaf cells. The chlorophyll packets are called chloroplasts

6 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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8 During Photosynthesis the energy from sunlight is trapped by green chlorophyll and then the energy is stored inside a carbohydrate called GLUCOSE SUGAR

9 This process is called PHOTOSYNTHESIS

10 Glucose sugar is made out of Water and Carbon Dioxide

11 A leaf is designed to bring together 3 ingredients. CO 2, H 2 0, and light co

12 Air Enters and leaves a leaf through tiny openings called Stomata. CO2 in…. O2 OUT

13 Water is carried in small tubes from root to leaf. We see the tubes as leaf veins

14 Thin leaves allow light to penetrate and hit chlorophyll

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16 Photosynthesis is all about making a sugar called GLUCOSE … C 6 H

17 The equation for Photosynthesis

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19 Energy from the sun is now stored in the sugar Energy is measured in calories

20 Made from CO2 and Water… with sunlight stored inside! ( calories )

21 During Photosynthesis… carbon dioxide is removed from the air and used to make sugar.

22 During Photosynthesis oxygen is released to the air

23 PLANT CELLS run on energy stored in glucose sugar

24 Animal Cells run on the energy stored in Glucose

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26 Model of a Glucose sugar molecule. C 6 H 12 O 6

27 The sun’s energy is now stored in the bonds of glucose sugar

28 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!

29 STARCH IS GLUCOSE molecules hooked together like train cars

30 STARCH

31 The only way energy gets into the bonds of glucose on the earth’s surface

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