Axillary bud and terminal bud derived from the activity of:
The Terminal (apical) bud of a plant is the primary growing point located at the apex (tip) of the stem.
The meristems which occur at the tips of roots and shoots and produce primary tissues are called apical meristems.
Axillary bud contains cells ‘left behind’ from shoot apical meristem and are capable of forming a branch or a flower.
The meristem that occurs in the mature regions of roots and shoots of plants and are responsible for producing the secondary tissues is called the secondary or lateral meristem. Fascicular vascular cambium, interfascicular cambium and cork-cambium are examples of lateral meristems.
The meristem derived from apical meristem and found at the base of leaves and above or below the nodes is known as intercalary meristem. They occur in grasses and regenerate parts removed by the grazing herbivores.
Parenchyma are simple permanent tissue consisting of thin-walled living cells with cell-wall made of cellulose and having intercellular spaces between them.