Aparent dna molecule replicates, resulting in two daughter dna molecules. which of the following is true?

A parent DNA molecule replicates, resulting in two daughter DNA molecules. Each daughter molecule contains one DNA strand from the parent molecule.

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.