The document provides an overview of key cell organelles and their functions: 1) The nucleus contains the cell's DNA and directs cellular activities such as movement and growth. 2) Mitochondria produce the energy (ATP) that cells need to function by converting food into energy. 3) The cell membrane surrounds cells and regulates what passes in and out, allowing nutrients in and waste out. 4) Vacuoles store nutrients, water, and waste in plant and animal cells. Plant cells have one large vacuole while animal cells have smaller ones.

1. Let’s meet: THE CELL ( a.k.a. The Basic Unit of Life)

5. The big thing to remember about Mitochondria is that they are the cell’s little powerhouses. Their whole purpose is to break down food molecules so that the cells have energy to live.