Significance of cell division:
(a) Cell division is a means of cell multiplication or formation of new cells from pre-existing cells
(b) Continuity: It maintains continuity of living matter generation after generation.
(c) Asexual reproduction : Cell division is a means of asexual reproduction in lower organisms.
(d) Multicellular organisms : The body of a
multicellular organism is formed of innumerable cells. They are formed by repeated divisions of a single cell or zygote. As the number of cells increases, many of them begin to differentiate, form tissues and organisms.
(e) Growth : Growth of an organism involves growth and division of its cells.
(f) Cell size : Cell division helps in maintenance of a particular cell size which is essential for efficiency and control of cell activities.
(g) Genetic similarity : The common type of cell division or mitosis maintains genetic similarity of all the cells in an individual despite their being different structurally and functionally.
(h) Repair : Cell division is a means of repair and healing of injured regions of the body. (Any five)