Mitochondria are often called the "powerhouses" of the cell. They are super important because they help cells turn glucose, a type of sugar, into energy.

Let’s break it down:

1. What They Look Like:
   Mitochondria have two layers, or membranes. The inner layer is folded up into special shapes called cristae. These folds help make more room for reactions that produce energy.

2. How They Work:

• The process of making energy is called cellular respiration.
• It includes three main steps: glycolysis, the Krebs cycle, and oxidative phosphorylation.
• From just one glucose molecule, about 36 to 38 units of energy called ATP are made!

3. Fun Facts:

• Mitochondria are responsible for about 90% of the energy a cell uses.
• They even have their own DNA, which is about 16,500 units long. This means they can make copies of themselves without waiting for the cell to divide.

In short, mitochondria are essential for providing the energy cells need to do their jobs!