Cellular Respiration Flashcards
oxidation
loss of electrons
reduction
gain of electrons
dehydrogenation
lost electrons are accompanied by hydrogen
NAD carries
electrons
NAD accepts what to become NADH
2 electrons and 1 protein
aerobic respiration
final electron receptor is oxygen
anaerobic respiration
final electron acceptor is an organic molecule
fermentation
final electron acceptor is an organic molecule (carbon)
oxidation of glucose
cells are able to make ATP via substrate level or oxidative phosphorylation
substrate level phosphorylation
transferring a phosphate directly to ADP from another molecule (makes ATP)
substrate level phosphorylation requires an
enzyme
oxidative phosphorylation
- use of ATP synthase
- energy derived from a proton gradient to make ATP
stages of oxidative phosphorylation
- glycolysis
- pyruvate oxidation
- krebs cycle
- electron transport chain
electron transport chain substrate
10 NADH and 2 FADH2
electron transport chain end product
- 30-34 ATP
in order for glycolysis to occur
needs 2 ATP
in mitochondria a multienzyme called
pyruvate dehydrogenase
pyruvate dehydrogenase is
a catalyst for pyruvate oxidation
all original glucose carbon is released in
krebs cycle
products per acetyl CoA
- 2 CO2
- 3 NADH
- 1 FADH2
- 1 ATP
after glycolysis, pyruvate oxidation, and krebs cycle, glucose has been oxidized to
- 6 CO2
- 4 ATP
- 10 NADH
- 2 FADH2
NADH and FADH2 electron carriers are used in
the electron transport chain as a substrate for Hydrogen reaction
energy lost in the electron transport chain is used to
pump protons across the membrane from the matrix to the inner membrane space
every ATP produced is done via
oxidative phosphorylation because its all done with ATP synthase
