photosynthesis. energy autotrophs use energy from sun to make their own food heterotrophs cannot...
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![Page 1: Photosynthesis. Energy Autotrophs Use energy from sun to make their own food Heterotrophs Cannot make their own food, so they eat autotrophs or other](https://reader035.vdocument.in/reader035/viewer/2022070408/56649e5f5503460f94b59316/html5/thumbnails/1.jpg)
Photosynthesis
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Energy Autotrophs
Use energy from sun to make their own food
Heterotrophs Cannot make their own
food, so they eat autotrophs or other heterotrophs for food.
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What is photosynthesis?
Plants take energy from the sun and store it as sugars
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Equation for Photosynthesis
+ light energy
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Light & Pigments Visible Spectrum
White light can be broken down into colors
Pigments Absorb certain colors of
light Reflect colors not
absorbed
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Chloroplast Pigments Chlorophyll
Located in the THYLAKOID
Absorbs red and blue light and reflects green
Carotenoids
Accessory pigment for colors yellow, orange, & brown
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Parts of Photosynthesis Light Reactions
Require light Occur in the THYLAKOIDTHYLAKOID
Dark Reactions Does not require light Occurs in the STROMASTROMA
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Light Reactions
SunlightSunlight and WaterWater are used to make ATPATP and NADPHNADPH Sun excites electrons and
they go to a higher energy level
OXYGEN (OOXYGEN (O22)) is released
This provides fuel for the dark reactions
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Dark Reactions…the Calvin Cycle Uses COCO22, ATPATP, and
NADPHNADPH to make PGALPGAL
PGAL is a building block to make glucose Carbohydrate sugar
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