Brown fat is a special kind of fat, with small vacuoles in the cells rather than a single large oil drop.
Brown fat is also rich in mitochondria.
Mitochondria are brown. Can you figure out why? Remember all the cytochromes which they contain. Then think of all these colored substances mixed together, like your tempra paints when you were in grammar school. They make brown.
The abundance of mitochondria accounts for the color of liver, kidney, myocardium (mixed with myoglobin for a red-brown), and brown fat.
This is brown fat. You'll have no trouble finding the capillaires; brown fat is generously supplied.
With your study partners, find:
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