Define growth, differentiation, development, dedifferentiation, redifferentiation , determinate growth, meristem and growth rate.

Growth is an increase in the amount of protoplasm, usually accompanied by an irreversible increase in size and weight involving the division, enlargement and the differentiation of cells. Differentiation. The process of becoming different in structure and function is termed differentiation. The differentation of cells involves a series of modifications such as changes in shape, size extent of secondary wall and protoplasmic contents. Development. Development is the sequence of processes in the overall life history of a cell or an organism including growth, differentiation, maturation and senescence. Dedifferentiation Plants show another interesting phenomenon. The living differentiated cells that by now have lost the capacity to deicide and regain the capacity of division under certain conditions. This phenomenon is termed as dedifferentiation. Redifferentiation, interfascicular cambium and cork cambium these meristems / tissues are able to produce cells that once again lose the capacity to divide but mature to perform specific function, i.e get redifferentiated and this phenomenon is called redifferentiation. Determinate Growth. It is a type of growth in which growth follows a precise pattern such that each part has its characteristic position and an unalterable fate. Meristem. Specific areas in higher plants, which take part in the formation of new cells, are called meristems. The cell of such meristems has the capacity to divide and self- perpetuate. Meristems are responsible for the primary growth of the plant and principally contribute to the elongation of the plants. Growth rate. The increased growth per unit time is termed as growth rate. Growth rate can be expressed mathematically.