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Dat Good Stuff

Quiz yourself by guessing what should be in each of the black rectangles below before clicking on it to display the answer.
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Autotroph   Organisms that use sunlight or chemical energy to make their own food.  
photosynthesis   The process of using light energy to make chemical energy in the formm of organic compounds, primarily carbohydrates.  
heterotroph   An organism that must get its energy from food made by autotrophs  
chloroplast   The organelle that contains thylakoids and is responsible for photosynthesis.  
thylakoid   A membranous sac where photosynthetic reactions take place.  
granum   A stack of thylakoids  
stroma   The jelly-like fluid within a chloroplast where the Calvin cycle takes place.  
pigment   A protein capable of absorbing light to produce energy.  
chlorophyll   A green pigment that absorbs red, blue, violet, and red light, but reflects green and some yellow.  
carotenoid   An accessory pigment that absorbs greens and reflects reds or oranges.  
photosystem   A cluster of pigment molecules that absorbs various wavelengths of ligh  
primary electron acceptor-   A molecule in the electron transport chain that accepts the electrons from the chlorophyll molecules of the photosystem.  
electron transport chain   A series of molecules that perform oxidation-reduction reactions as they pass electrons from one to the other.  
chemiosmosis   The pumping of hydrogen ions across a membrane through an ATP synthase protein pump.  


   


 

 

 

 

 
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