How many of the following are not included under endomembrane system?Lysosomes; Mitochondria; Endoplasmic reticulum; Chloroplast; Peroxisomes; Vacuoles; Golgi complex; Centrosome; Ribosomes

The endomembrane system include endoplasmic reticulum (ER), golgi complex, lysosomes and vacuoles. Since the functions of the mitochondria, chloroplast, centrosome, ribosomes and peroxisomes are not coordinated with the above components, these are not considered as part of the endomembrane system.