Main function of mitochondria in animal cell

act like a digestive system which takes in nutrients and breaks them down

Explanation:

Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. The biochemical processes of the cell are known as cellular respiration.

It is the powerhouse of the cell. It breaks down nutrients and creates energy for the cell.