Lecture 8: Fermentation and Respiration Flashcards
Regeneration of NAD+
Help.. IDK what this slide is trying to say
Fermentation is performed by _____ _____
anaerobic microorganisms
the primary purpose of fermentation is _____
regenerate NAD for reuse
The _____ is the electron acceptor in fermentation
organic molecule
The secondary purpose of fermentation is
generate additional energy
the energy yields of fermentation are _____
very small
since the energy yields of fermentation are small, the growth rates are _____
slower
What uses lactic acid fermentation
muscles, yogurt, and sourdough bread
What are the two reasons fermentation is important to the cell
electrons from metabolism are dumped and is a potential source of ATP for the cell
What are the two reasons fermentation is important for humnas
means of classifying bacteria and important source of solvents
Electrons pass from good _____ to good ______ when delta G is _____ ______ 0
good donors to good acceptors when delta g is less than 0
NADH + H+ is an excellent _____ _____
electron donor
1/2 O2 is the strongest _____ _____ since it is so electronegative
electron acceptor
Molecules differ in their ____ ___ _____
affinity for electrons
when capturing re-dox energy, it is most efficient to _____
have a complex process with multiple steps that better capture energy
Where does electron transport usually occur
on membranes
the _____ _____ is usually present outside the cell
electron acceptor
Electron transport systems are needed in large quantities for _______
respiration
___ _____ ____ must be captured by cell cytoplasm
electron passage energy
The respiratory ETS requires ______ and _____ _____
intermediates and multiple steps
Electrons from ______ to ___ release energy
NADH to O2
What are the 3 common features in many ETS pathways
NADH Oxidase, Quinones, and Cytochromes
Flavoproteins are _____ proteins with a ____ _____ such as FAD or FMN
common proteins with a flavin cofactor
Flavoproteins can carry _____ ____ and ____ ____
two protons and two electrons
Quinones contain _____ lipids
isoprenoid
