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photo
energy
18
English
11th Grade
02/24/2009

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Term
Photosynthesis
Definition
The process by which light energy is converted into the stored chemical energy of organic molecules.
Term
Autotrophs
Definition
Sustain themselves without eating anything derived from other organisms; producers of the atmosphere.
Term
Heterotrophs
Definition
Obtains their organic material from other organisms; are the consumers of the biosphere.
Term
Light
Definition
Form of electromagnetic energy
Term
Wavelength
Definition
Distance between crests of waves; determines the type of electromagnetic energy
Term
Photons
Definition
Tiny packets of energy
Term
Chloroplasts
Definition
The location of photosynthesis
Term
Chlorophyll
Definition
The green pigment within chloroplasts
Term
Photosynthetic Pigments
Definition
The light receptors that absorb visible light
Term
Chlorophyll a
Definition
initiates light-dependent reactions of photosynthesis
Term
Chlorophyll b
Definition
accessory pigment that also participates in photosynthesis
Term
Carotenoids
Definition
Accessory pigment that reflects yellow/orange.
Term
Light Reactions
Definition
The Photo part of photosynthesis
Term
Calvin cycle
Definition
The Synthesis part of photosynthesis and forms sugar
Term
Photosystem II
Definition
Functions first and is best at absorbing a wavelength of 680 nm
Term
Photosystem I
Definition
The best at absorbing a wavelength of 700 nm
Term
Chemiosmosis
Definition
Diffusion of ions across a selectively permable membrane. Relates to generation of ATP by moving hydrogen across the membrane.
Term
C4 Plants
Definition
Minimize the cost of photorespiration by incorporating carbon dioxide into four-carbon compounds in mesophyll cells.
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