What are #Cristae and #Cisternae? Cristae are intricate, finger-like structures found within #mitochondria – the powerhouses of the cell. These specialized inner membranes play an indispensable role in energy production and cellular respiration. On the other hand, cisternae are flat, stacked membrane structures observed in the #endoplasmicreticulum and #golgiapparatus. They function as essential sites for #protein synthesis, processing, and cellular transport.