Observed Fig. 7.3 and attempt the question that follow it.

(a) Label the parts 1, 2, 3 and 4 in the diagram.

(b) What type of venation does the leaf has?

(c) What type of venation is seen in grass?

(a) 1) Petiole

2) Mid rib

3) Lamina

4) Veins

(b) The leaf has reticulate venation, in which veins spread out from the mid rib to all the parts of leaf, giving the appearance of net.

(c) Grass leaves have parallel venation, in which veins run parallel to one another on both the sides of mid rib.