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Exam 3 pt 2
.
18
Microbiology
Undergraduate 3
11/18/2012

Additional Microbiology Flashcards

 


 

Cards

Term
Fermentation
Definition
the conversion of NADH back to NAD+ to continue glycolysis.
Term
Lactate fermentation
Definition
the reduction of pyruvate to lactate.
Term
Fermentation yield
Definition
net gain of 2 ATP per glucose, and 1 NADH
Term
Homolactic
Definition
directly reduces almost all of their pyruvate to lactate with the enzyme lactate dehydrogenase.
Term
Fermenters
Definition
chemoorganotrophic microbes that lack ETC or repress the synthesis of ETC components under anoxic conditions.
Term
Methanogens
Definition
use H2 as the energy source, and can deplete O2 in soil.
Term
Anaplerotic reactions
Definition
form intermediates of a metabolic pathway. found in TCA cycle. The act of replenishing TCA cycle intermediates that have been extracted for biosynthesis.
Term
C4 pathway
Definition
PEP carboxylase catalyzes the incorporation of CO2 into PEP to form oxaloacetate (OAA), coupled with the cleavage of phosphate from PEP.
Term
Nitrate final electron donor
Definition
NADPH
Term
Nitrification
Definition
Converting NH4 to NO2 then eventually to NO3
Term
Denitrification
Definition
Converting NO3 to N2
Term
Ammonification
Definition
decomposing organic nitrogen into NH4
Term
Amino acid synthesis
Definition
important to all cells because these molecules are used to synthesize ATP, several cofactors, RNA, DNA.
Term
Bactroprenol
Definition
exchanged places with the nucleotide on the NAM-pentapeptide subunit liberating UMP from the process.
Term
Transglycosylation
Definition
C55 lipid carrier is cleaved from the completed subunit, and the energy released is used to form a glycosidic linkage to an existing glycan chain.
Term
Transketolase
Definition
needs thymine pyro phosphate as a co enzyme to take substrates to make sugar products.
Term
Pentose phosphate
Definition
purpose is to make ribose for the purpose of making nucleotides for DNA, RNA. 2nd purpose is to make reducing power in the form NADPH.
Term
Cellular respiration
Definition
process of catabolizing glucose to CO2 and water and using the energy liberated in the process to drive ATP synthesis.
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