All cells use energy

Do all cells use oxygen to produce energy ?

Which carbohydrate is used by cells as energy source?

During oxidation within a cell, all the energy contained in respiratory substrate, is :

………….....(All/Not all) cells are dry

Assertion. Mitochondria are known as the power houses of the cell. Reason. Mitochondria generate biologically useful energy (ATP) for the cell activities by oxidation of fuel.

Do all the cells use oxygen to produce energy?