STD 11 - 13. Plant growth and development — NEET STD 11 Science — Question

b
(b)In phase of cell division, cells divide mitotically in apical meristem to increase mass. In phase of cell elongation, cells increase in size due to vacuolation i.e., by absoption of water. In phase of cell differentiation, cells start maturing to gain a permanent size and function.