The photosynthetic pigments include chlorophylls A and B plus various carotenoids.
Plant cells have cell walls which are made of cellulose.
Plants grow by mitosis, and reproduce by meiosis and alternation of generations with special adaptations of the gametes and embryos to survive in a non-aquatic environment. The gametes are produced in gametangia . The eggs are fertilized within the female archegonium to reduce desiccation, and often stay within the archegonium to continue their development. In all plant groups except Division Bryophyta, the 2n sporophyte is the dominant generation. For more information on plant taxonomy, check out this site on Systematic Botany at the University of Maryland.