three key pathways of respiration
Click the card to flip 👆
1 / 19
Terms in this set (19)
How does NAD+ trap electrons from glucose and other organic molecules?dehydrogenases remove hydrogen atoms from the substrate thereby oxidizing it, NAD+ becomes NADH from those two electrons, the proton is released as a hydrogenhow do electrons that are extracted from glucose and stored as potential energy in NADH finally reach oxygen?NADH passes electrons to electron transport chain- mainly proteins that are built into the inner membrane of the mitochondria, oxygen captures these electrons along with combustion and electron transport chainboth produce energy, heat is produced, electron transport chain releases energy while combustion takes in energywhy do hydrogen-rich molecules make good fuelwhen burned, the waste is only pure waterhow is a smaller amount of ATP formed in glycolysis and citric acid cycleby substrate-level phosphorylationenergy investmentcell spends ATPenergy payoffATP produced by substrate-level phosphorylation and NAD+ is reduced to NADH from the oxidation of glucoseelectron transport chaingets electrons that power ATP synthase via oxidative phosphorylationChemiosmosisA process for synthesizing ATP using the energy of an electrochemical gradient and the ATP synthase enzyme.