Mitochondria are often depicted in textbooks and diagrams as being a reddish or orange color. However, in reality, mitochondria do not have a specific color. They are colorless and transparent under a microscope. The colors you see in illustrations are used to help distinguish them from other cellular components and to make the images more visually appealing.
Mitochondria are known as the powerhouses of the cell because they generate most of the cell’s supply of adenosine triphosphate (ATP), used as a source of chemical energy. Despite their lack of color, their function is crucial for the cell’s survival and energy production.