PLASMAMEMBRANE: structure, pemeability and dynamic properties. GLYCOCALIX and Cell communication: adhesive, tight and gap JUNCTIONS. CELL ADHESION. COMPARTMENTS and Cell trafficking: ENDOPLASMIC RETICULUM; ribosomes; GOLGI APPARATUS; endocytosis and exocytosis. Secretion and membrane flow. LYSOSOMES, peroxysomes. MITOCHONDRIA: origin, morphology and function. CYTOSKELETON and MOTILITY: microtubules, microfilaments and intermediate filaments. NUCLEUS: interphasic structure; envelope and nuclear pore trafficking. Euchromatin and heterochromatin; nucleosomes. Nucleolus. CELL CYCLE: interphase, mitosis and cytokinesis. Chromosomes and mitotic spindle. CELL CYCLE CONTROL and its CHANGES: polyploidy and PROGRAMMED CELL DEATH.