Structural Organisation In Plants

Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by

Options

(a) absence of secondary phloem (b) presence of cortex (c) position of protoxylem (d) absence of secondary xylem

Correct Answer: […]

The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:

Options

(a) elongating (b) widening (c) differentiating (d) maturing

Correct Answer:

maturing

Explanation:

The annular […]