Various functions of stems are as follows:
(a) Stem bears leaves and holds them in a position so that it provides maximum sunlight.
(b) Stem transports water and minerals from roots to leaves, flowers and fruits.
(c) Stem also transports food from leaves to other parts of the plant.
(d) Stem holds the flowers in such a position that it facilitates pollination and fertilisation.
(e) Stem also bears fruits and seeds.
(f) In many plants, stems serve as means of vegetative propagation.