Mitochondria in liver

Processes occurring inside the mitochondrial matrix include pyruvate oxidation, fatty acid oxidation, amino acid metabolism, and the citric acid cycle. Furthermore, respiratory proteins are bound to the inner membrane, so the density of cristae corresponds to the respiratory activity of a cell. For example, mitochondria in heart muscle cells (high rates of respiration) are densely packed with cristae, whereas mitochondria in liver cells (low rates of respiration) have more sparsely distributed cristae. 

Fig. 1-28. Mitochondria in liver cell (low resolution), m mitochondria ers smooth endoplasmic reticulum S space of Dische. (From Trump)...

---