Question

what happens if there are no mitochondria in eukaryotic cell

Answer 1

If mitochondria will not be present in cell then the cell will not able to make ATP which is also known as energy currency of cell if mitochondria will not there then cell may not able to contain DNA and ribosomes separately from nucleus

Answer 2

They would cease to exist.

Without mitochondria, higher animals will not be able to derive energy from only anaerobic respiration due to a lack of oxygen because anaerobic respiration is much less efficient than aerobic respiration which is so important for any higher animal.

Mitochondria are the power generators of a cell as they help in converting nutrients and oxygen into adenosine triphosphate (ATP) that is the chemical energy needed for carrying out all metabolic activities.