In plants exhibiting unusual secondary growth, like in Bougainvillea, the additional cambia arise from:
Residual procambium cells
Cells of the pith
Cells of the cortex or pericycle
Differentiated xylem parenchyma
Related Questions
I. Primary tissues of plants add length to the roots and shoots
II. Secondary tissue of plants adds diameter to the roots and shoots
III. Cells of permanent tissue are specialised both structurally and functionally
Which of the above statement is/are true?
All except I
All except II
All except III
I, II and III
In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues?
Stem and root
All parts
Shoot tips and root tips
Flowers, fruits and leaves
