But Plants and the Animals are quite different and belong to different kingdoms of life. Differentiate the animal and plant organism at any level (cell, tissue, or organ) by describing 4 differences.

Very hard to understand

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.

Yes yes yes very good