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Where do plants get their mass?
September 30- buoyant- ('boi yant)- (adjective)- cheerful; able to float The coach valued him as a member of the team because his buoyant
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An acre of pine trees (~120 trees) has the potential to take in roughly 5 tons of CO2 per year.
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Autotrophic vs. Heterotrophic
Autotrophs are “self-feeders” They can make their own food! Usually they use photosynthesis to make food Heterotrophs are “other feeders” These organisms cannot make their own food They must eat food made by others
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Photosynthesis Carbon dioxide + water + light Glucose + oxygen
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Where does photosynthesis occur in plants?
It occurs in the chloroplasts of plant cells
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The structure of a chloroplast
Outer membrane Inner membrane Thylakoid membrane Stroma (fluid)
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That is photosynthesis in a nutshell.
Once sunlight is captured, its energy is trapped in the chemical bonds of sugars such as Glucose That is photosynthesis in a nutshell.
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Building plants from sunlight & air
Photosynthesis 2 separate processes Light Dependent Reactions collect sun energy use it to make ATP (Energy) Calvin Cycle take the ATP energy collect CO2 from air & H2O from ground use all to build sugars ATP H2O + CO2 sugars carbon dioxide CO2 water H2O sugars C6H12O6 +
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A Summary of Photosynthesis
Light + H2O + CO2 Light Reactions Calvin Cycle Oxygen + Glucose
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glucose + oxygen carbon + water + energy
How are they connected? Respiration glucose + oxygen carbon + water + energy dioxide C6H12O6 6O2 6CO2 6H2O ATP + Photosynthesis So, in effect, photosynthesis is respiration run backwards powered by light. Cellular Respiration oxidize C6H12O6 CO2 & produce H2O fall of electrons downhill to O2 exergonic Photosynthesis reduce CO2 C6H12O6 & produce O2 boost electrons uphill by splitting H2O endergonic 6CO2 6H2O C6H12O6 6O2 light energy + glucose + oxygen carbon dioxide sun + water +
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The Great Circle of Life!
sun Energy cycle Photosynthesis plants H2O CO2 glucose sugars O2 animals Cellular Respiration ATP The Great Circle of Life! Mufasa?
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