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Photosynthesis

Chapter 8

TermDefinition
autotroph a self-nourishing organism that makes its own food
stoma an opening on the underside of a leaf for gas exchange
vascular bundle a vein in a leaf that transports water and food
mesophyll the green tissue inside a leaf
electromagnetic radiation radiation that is made of electrical and magnetic waves
photon the smallest unit of light
absorb to retain
wavelength the distance between repeating units of a wave pattern
electromagnetic spectrum the range of wavelengths of electromagnetic radiation
carotenoid any yellow, orange, or red pigment found widely in plants and animals
Calvin-Benson cycle A process in photosynthesis that produces sugar
G3P a sugar molecule
reaction center a special molecule of chlorophyll A in which electron transfer occurs
photosystem an assembly of proteins and pigments through which electrons are transferred to reaction centers
RuBP a five-carbon carbohydrate that combines with CO2 in the first step of the Calvin-Benson cylce
PGA a three-carbon molecule formed in the first step of the Calvin-Benson cycle
C4 plant a plant that photosynthesizes in hot, dry weather
CAM plant a plant that takes in CO2 only during the night
Created by: mrspuffisphat21