biology notes

MITOCHONDRIA DEFINITION; ■ MITOCHONDRIA (SINGULAR: MITOCHONDRION) ARE DOUBLE MEMBRANE  BOUND STRUCTURES FOUND ONLY IN EUKARYOTES. IMPORTANT ORGANELLE; ■ MITOCHONDRIA ARE VERY IMPORTANT ORGANELLES OF EUKARYOTIC CELLS,  BECAUSE THEY ARE INVOLVED IN THE MANUFACTURE AND SUPPLY OF  ENERGY TO THE CELL.  POWERHOUSE OF CELL; ➣ THEY ARE ALSO KNOWN AS POWERHOUSES OF THE CELL. OUTER MEMBRANE;   ➣ THE OUTER MEMBRANE OF A MITOCHONDRION IS SMOOTH. INNER MEMBRANE; ■ BUT THE INNER MEMBRANE FORMS MANY INFOLDINGS, CALLED CRISTAE SINGULAR (CRISTA) IN THE INNER MITOCHONDRIAL MATRIX. UNDER COMPOUND MICROSCOPE; ■ UNDER COMPOUND MICROSCOPE THEY APPEAR TO BE VESICLES, RODS OR FILAMENTS. UNDER ELECTRON MICROSCOPE; ■ UNDER AN ELECTRON MICROSCOPE, THEY SHOW COMPLEX MORPHOLOGY.   ALTHOUGH THEIR NUMBER, SHAPE AND INTERNAL STRUCTURE VARY WIDELY. SIMILARITY IN STRUCTURE; ■ THE MITOCHONDRIAL MEMBRANES ARE SIMILAR IN STRUCTURE TO OTHER   CELL MEMBRANES.  DETAILED STUDIES; ■ D...