chapter 11.1 EXAM III Flashcards
What are phototrophs?
organisms that use light as their energy source.
What are chemotrophs?
organisms that use the oxidation of chemical compounds as their source of energy.
What are lithotrophs?
organisms that used reduced inorganic substances as their electron source.
What are organotrophs?
organisms that extract electrons from reduced organic compounds.
What are heterotrophs?
organisms that use reduced, preformed organic molecules as their carbon source.
What are autotrophs?
organisms that use carbon dioxide as their principal source of carbon.
What are chemoorganoheterotrophs?
organisms that use the reduced organic compounds made by autotrophs as sources of energy, electrons and carbon.
What are photoorganoheterotrophs?
photosynthetic bacteria that sue organic molecules as their electron and carbon source.
What are chemolithoheterotrophs?
organisms that use reduced inorganic molecules as their energy and electron source but derive their carbon from organic sources.
What is reducing power?
molecules that serve as a ready supply of electrons for a variety of chemical reactions.
What are precurso metabolites?
small organic molecules that provide the carbon skeleton needed for biosynthesis of important chemical building blocks.
What are fueling reactions?
the processes that supply ATP, reducing power and precursor metabolites.
