energy flow- photosynthesis & cellular respiration focus question: where do plants and animals...
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Energy Flow- Photosynthesis & Cellular
RespirationFocus Question:
• Where do plants and animals get their energy from?
![Page 2: Energy Flow- Photosynthesis & Cellular Respiration Focus Question: Where do plants and animals get their energy from?](https://reader037.vdocument.in/reader037/viewer/2022103101/56649f275503460f94c3ec5b/html5/thumbnails/2.jpg)
Energy Flow• Radiant energy is
energy that comes from the Sun
• Light energy is seen by humans; it’s absorbed by plants in the chlorophyll and converted into chemical energy during photosynthesis.
0.023% absorbed by plants
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Energy Flow• Chemical energy is
the energy stored in the bonds of compounds and molecules.
0.023% absorbed by plants
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Producers and Consumers
• Producers (green plants) create glucose or chemical energy from light energy. They do not need to consume other organisms to get energy.
• Consumers are organisms which need to eat (consume) other organisms to get their energy. They cannot perform photosynthesis.
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Photosynthesis• Producers perform photosynthesis to create high-energy
sugars (glucose), which the plant then uses or stores.
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Photosynthesis• Write the word equation for photosynthesis.
carbon dioxide + water glucose + oxygen
• Write the chemical equation for photosynthesis.
CO2 + H2O C6H12O6 + O2
sunlight
chlorophyll
sunlight
chlorophyll
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Try This• Try holding your breath for as long as you can.
• Why do you feel you need to breathe after a while?
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Cellular Respiration• Cellular respiration occurs in the cells of producers and
consumers, releasing energy stored in glucose.
• By breaking the bonds in glucose, the chemical energy that was stored in them is released, making it available to be used.
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Cellular Respiration• Write the word equation for cellular respiration.
glucose + oxygen carbon dioxide + water + ENERGY
• Write the chemical equation for cellular respiration.
C6H12O6 + O2 CO2 + H2O + ENERGY
![Page 10: Energy Flow- Photosynthesis & Cellular Respiration Focus Question: Where do plants and animals get their energy from?](https://reader037.vdocument.in/reader037/viewer/2022103101/56649f275503460f94c3ec5b/html5/thumbnails/10.jpg)
The Reactions
How are the processes related?
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How are they related?
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Complementary Processes
• Cellular respiration and photosynthesis are complementary processes because the products of one reaction are the reactants of the other reaction.
• ie. CO2 and H2O are produced in cellular respiration and needed for photosynthesis to occur.