Nutrient Requirement Flashcards
What is the carbon source of Heterotrophs?
Organic compounds such as carbohydrates as a carbon energy source
What is the carbon source of autotrophs?
Carbon dioxide
What are facultative autotrophs?
Normally autotrophs that can switch
Uses and sources of Carbon?
Source:
Molasses
Starch
Corn syrup
Use:
Cellular biopolymers and used by the cell for energy
Sources and use for Nitrogen?
Sources:
Ammonia
Yeast extract
Uses:
Make proteins and nucleic acids
Sources and use of oxygen?
Sources:
Air sparging - bubbling
Use:
Required to make organic compounds
Terminal e acceptor in aerobic metabolism of carbon compounds
What are sources and uses of hydrogen?
Sources:
Carbon sources such as carbohydrates
Uses:
Required to make biopolymers
Sources and use of phosphorus?
Sources:
Inorganic phosphate salts
Uses:
Nucleic acids
Regulates cell metabolism
Sources and use of sulfur?
Source:
Sulfate salts
Uses:
Required to make proteins and coenzymes
Source and uses of potassium?
Sources:
Potassium salts
Uses:
Required in carbohydrate metabolism and a cofactor for certain enzymes
Sources and use of magnesium?
Sources:
Magnesium salts
Uses:
Component in cell walls
Required by ribosomes and is a cofactor for some enzymes
Use and source of chelating agents?
Source:
EDTA, citric acid
Uses:
Prevents precipitation of ions
Use and source of Growth Factors?
Sources:
Vitamins (functions as coenzymes)
Hormones (for animal cells, regulate metabolism)
Uses:
Stimulate growth and synthesis of some metabolites
Define metabolite vs enzyme
Meta: Intermediates and products of metabolism. Small structures used in fuel structure, signaling, defense and interaction
Enzyme: biological catalysts. Most are proteins some are ribozymes.
Primary vs Secondary metabolites
Primary: Is directly involved in normal growth, development and reproduction. (Amino acids, vitamins, organic acids, ethanol)
Secondary: NOT directly involved in normal growth. Absence does NOT cause death but does leas to impairment. (Antibiotics)
