It’s due to stem cells. The genes in dna turn on and off to give a cell a specific job, so stem cells can be “programmed” as any cell the body needs. (Muscle cell, skin cell, etc)
The mitochondria is the part which is responsible for the cell's energy
A: Glyclosis
This is just a guess as I need to answer at least one question
The lysosomes are the “garbage disposal” of animal cells , the same process takes place in plant cells in its vacuoles