<Ul> <Li> Photosynthesis </Li> <Li> Anoxygenic photosynthesis </Li> <Li> Chemosynthesis </Li> <Li> Carbon fixation </Li> </Ul> <Tr> <Td_colspan="2"> <Ul> <Li> Xylose metabolism </Li> <Li> Radiotrophism </Li> </Ul> </Td> </Tr> <Ul> <Li> Xylose metabolism </Li> <Li> Radiotrophism </Li> </Ul> <Tr> <Th> Lipid metabolism (lipolysis, lipogenesis) </Th> <Td> <Table> <Tr> <Th> Fatty acid metabolism </Th> <Td> <Ul> <Li> Fatty acid degradation (Beta oxidation) </Li> <Li> Fatty acid synthesis </Li> </Ul> </Td> </Tr> <Tr> <Th> Other </Th> <Td> <Ul> <Li> Steroid metabolism </Li> <Li> Sphingolipid metabolism </Li> <Li> Eicosanoid metabolism </Li> <Li> Ketosis </Li> <Li> Reverse cholesterol transport </Li> </Ul> </Td> </Tr> </Table> </Td> </Tr>

Where does lactic acid fermentation occur in humans