Flashcards in Ch 4 - Nutrition, Culture, and Metabolism of Microorganisms Deck (51)
The sum total of all chemical reactions that occur in a cell
Energy-releasing metabolic reactions
Energy-requiring metabolic reactions
iron under anoxic conditions, exist in which form (Fe2+/Fe3+) and (soluble/insoluble).
Fe2+ and soluble
iron under oxic conditions, exist in which form (Fe2+/Fe3+) and (soluble/insoluble).
Fe3+ and insoluble
these iron-binding agents obtain iron from insoluble mineral form
a culture media where precise chemical composition is known
a culture media composed of digests of chemically undefined substances
culture containing only a single kind of microbe
unwanted organisms in a culture
unit of measurement for energy
energy released that is available to do work
change in free energy during a reaction
Reactions with a negative delta G0′ release/require free energy
Reactions with a positive delta G0′ release/require energy
Reactions with a negative delta G0′ release free energy
Reactions with a positive delta G0′ require energy
free energy that occurs under actual conditions
delta G =
delta G0′ + RT ln K
energy required to bring all molecules in a chemical reaction into the reactive state
substance that Lowers the activation energy of a reaction
substance that Increases reaction rate
Are enzymes generally larger or smaller than the substrate?
region of enzyme that binds substrate
non protein molecules that bind tightly to enzymes
non protein molecules bound loosely to enzymes
redox reactions occur in two ____ ______.
the substance oxidized in a redox reaction