The cell program consist of 3D graphics of cell organelles and 3D animation of cellular processes. Review module provides review questions and links the user to the correct answers. The basic module is free and can be downloaded from http://www.mypondsoftware.com. The Add on module expands and adds more graphics and animations - it requires a KEY that can be purchased from REGNOW. The animations describe cell ameboic motion, cell division, DNA multiplication, phagocytosis, protein formation, immune system response, red blood cell formation, membrane diffusion. The 3D graphics describe cell organelles, sperm cell, a chromosome, microvilli. Several SEM images are also included. The program is intended for high school students and first year university students of biology.