chapters 7-8
Photosynthesis
Metabolic process carried out by green plants, algae, and some bacteria by which visible light is trapped and the energy is used to synthesize organic compounds.
Chloroplast
Organelle in plant cells that is the site of photosynthesis.
Reduction Oxidation Reaction (Redox)
Chemical reaction in which one reactant becomes oxidized and another reduced.
Oxidation
Loss of electrons by chemical reaction.
Reduction
Gain of electrons by chemical reaction.
Radiant Energy
Energy that travels through space in waves.
Photons
Little packets of energy.
Electromagnetic Spectrum
All types of radiation arranged by wavelength.
Wavelength
Distance between crests of two successive waves.
Frequency
The number of crests that pass a given point per unit time.
Pigment
Substance that absorbs visible light.
Chlorophyll
Primary pigment involved in photosynthesis in green plants.
Carotenoids
Accessory pigments.
Absorption Spectrum
Diagram that shows how effectively a pigment molecule absorbs different wavelengths in the spectrum of visible light.
Antenna System
System of chlorophyll pigments and accessory pigments embedded in thylakoid membrane that work together to gather solar energy.
Reaction Center
Particular Chlorphyll a molecule in antenna system that passes excited electron from antenna system to …