Describe the process that occurs at the electron transport chain and the process of chemiosmosis in order to produce ATP; including name the components of the ETC
identify the role of oxygen gas in the ETC
identify the components that oxidize NADH versus FADH2
explain the difference between cytoplasmic NADH versus mitochondrial NADH
explain the creation of the electrochemical gradient and the production of ATP from chemiosmosis
account for the number of ATP produced in oxidative phosphorylation

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the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.