Though it is part of cellular respiration and plays a key role in generating ATPs, tumor cells in this case prefer Glycolysis over citric acid cycle due to the influence of Warburg Effect.

The Cori cycle is mainly involved in converting lactate produced by anaerobic respiration in muscles, back to glucose in the liver. It is not directly involved in the energy metabolism of the tumor cells.

Despite its role in producing a significant proportion of cellular ATP, the Electron Transport Chain is not the preferred energy pathway for cancer cells due to the Warburg Effect.

Although Gluconeogenesis might be indirectly involved by supplying glucose to other cells, it is not the primary mechanism by which tumor cells fulfil their energy requirements.