Concept of Transpiration

The radio labelled carbon in carbon dioxide supplied to potato plants in an experiment was seen in the tuber eventually. Trace the movement of the labelled carbon dioxide.

Why is transpiration less in the still wind?

Briefly describe the following:

Angina Pectoris

Given below is a diagrammatic sketch (surface view) of a stomatal apparatus from a dicot leaf.

(a) Label the parts numbers 1-3
(b) Is this state, open or closed?
(c) Is this stoma, of a dicot leaf or a monocot leaf?
(d) Redraw a sketch of the stomatal apparatus in the state opposite to the one shown here. 

Discuss the factors responsible for ascent of xylem sap in plants

Choose the correct answer:

The percentage of cuticular transpiration in plants is _____________

Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.

What is the purpose of the spring balance in the set-up?

(a) State whether the following statement are True or False.

(b) Rewrite the false statement in the correct form by changing either the first or the last word only.

Transpiration helps to cool the body of the plant.