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CHAPTER8
VOCABULARY WORDSSS!
16
Biology
9th Grade
01/18/2011

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Term
ATP
Definition
One of the most important compounds that cells use to store and release energy.
Term
Heterotroph 
Definition
Organisms that obtain food by consuming other living thing. 
Term
Autotrophs
Definition
Organisms that make their own food
Term
Photosynthesis
Definition
Process which autotrophs capture the energy of sunlight and store it in molecules that make up food. Producing high energy carbohydrates sugars and starches that can be used as food
Term
Pigments
Definition
Plants gather the sun's energy with light absorbing molecules
Term
chlorophyll
Definition
Two Types: Chlorophyll A and B absorb light in the blue violet and red regions of the spectrum Chlorophyll does not absorb light well in the green region.
Term
Thylakoids
Definition
Chloroplasts contain an abundance of sacklike photosynthetic membranes. Stacks of grana 
Term
Stroma
Definition
fluid of the thylakoid 
Term
NADP+ 
Definition
Electron carrier. Accepts and holds 2 high energy electrons with hydrogen ions coverts in to NADPH 
Term
Light Dependent Reactions
Definition
they require direct involvement of light and light absorbing pigments
Term
Light Independent Reactions
Definition
ATP and NADPH molecules produced and are used to produce high energy sugars from carbon dioxide does not use the light
Term
Photosystem
Definition
Thylakoids contain clusters of chlorophyll and proteins. Absorbs sunlight and generate high energy electrons. IMPORTANT PROCESS
Term
Electron Transport Chain 
Definition
series of electron carrier proteins that shuttle high energy electrons during ATP generating reactions. 
Term
ATP synthase 
Definition
Thylakoid membrane contains protein  that spans the membrane and allows Hydrogen ions to pass through it. 
Term
Calvin Cycle 
Definition
Independent reactions plants use energy that ATP and NADPH contain to build stable high energy carbohydrate compounds that can be stored for a long time, 
Term
IMPORTANT THOUGH IN CHAPTER 9 
Definition

GLYCOLYSIS COMES FIRST

THEN KREBS CYCLE 

THEN ELECTRON TRANSPORT. 

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