Ch. 4-6
Mitochondria
relatively large
sites of chemical reactions
	organic compounds -> ATP
Structure
	two membranes
		outer
			smooth
			boundary between mitochondrion and cytosol
		inner
			long folds (cristae)
				enlarge surface area of inner membrane
				more space for chemical reactions
Have their own DNA
	Theory
		developed from prokaryotic cells
			gained protection by living in eukaryotes
			produced energy for eukaryotes






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