Cellular Respiration Flashcards
Glycolysis occurs in the
Cytoplasm
Used in both anaerobic and aerobic respiration
Glycolysis
Gly reactants and products
6 carbon glucose
2 three carbon pyruvate
Gly- ATP produced
Uses 2
Produces 4
(2 total gain)
Gly- produces ATP by
Substrate level phosphorylation
Electron ripped from glucose reduces
2 NAD+ into 2 NADH
Fermentation
Recycles NADH to NAD+ so glycolysis can continue in anaerobic organisms
Electron taken from NADH reduce pyruvate (waste electrons)
Lactic acid fermentation
Occurs in human muscle cells without enough oxygen
Ethnological fermentation
Produces CO2 and Ethanol
PDC
Pyruvate Dehydrogenase Comlex
Converts pyruvate from glycolysis into CO2 and acetyl CoA
CoA
Coenzyme that transports the 2 carbon acetyl group into the mitochondria for the Krebs cycle
aerobic
Krebs cycle
Completely oxidizes food into CO2 (2 per acetyl group)
Does a bunch of other stuff in other cards
Occurs in matrix of mitochondria
1st reaction in Krebs cycle
First- adds 2 carbon acetyl group to 4 carbon oxaloacetate producing 6 carbon citrate
Complex reactions produce
3 NADH and 1 FADH2 per acetyl group
1 ATP
Regenerates oxaloacetate to continue cycle
Electron transport chain
Electron from NADH and FADH2 pass through series of proteins in inner mitochondria membrane
the energy from this flow is used to pump H+ ions into the inter-membrane space creating a concentration gradient
The electrons are added to 2 H+ and oxygen to produce water
Requires O produces H2O
Chemosmosis
Flow of h+ ions from the inter-membrane space to the matrix through ATP synthase (down in concentration gradient) causes the molecule to spin the rotational energy converts APD and Pi to ATP
Produces 32 ATP per glucose (from what was in NADH and FADH2)
ATP synthase
Enzyme that crosses inner mitochondrial membrane and makes ATP
Aerobic respiration overall
Glucose —> 6 CO2 and 6 H2O
