Draw a magnified view of the root hair and label all its parts neatly. From the parts labelled by you, name the parts matching the description given below:

(a) Outermost layer of the root

(b) Unicellular outgrowth

(c) Part that is freely permeable

(d) Part that is semi-permeable

How does temperature, light intensity and wind affect transpiration?

Given alongside is an experimental set up. Study the figure and answer the following questions:

(a) What is the main objective of the experiment?

(b) Name the tissue which is responsible for the process shown in the figure.

(c) Name two dyes which can be used in the above experiment to make a coloured solution.

The set up shown alongside was kept in sunlight for an hour. It was observed that drops of water appeared on the inside surface of the polythene bag.

(a) Name the process which is being demonstrated.

(b) Why was the pot with its soil left uncovered by the polythene bag?

(c) Why was the pot left in sunlight?

(d) Suppose that the pot in this experiment was placed inside a dark room instead of placing it in sunlight for some time. What difference would be noticed?