Draw the veins of leaves given in Fig. 7.2 below and write the type of venation.

Can the stem of a plant be compared with a street with two-way traffic? Give reason.

Read the function of parts of a plant given below:

(a) fixed plant to the soil

(b) prepares starch

(c) takes part in reproduction

(d) supported branches and bears flowers

In the diagram given in Fig. 7.1 write the names of the parts whose function you have just read at the appropriate space.

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?

Observe the picture of an activity given as fig. 7.4 carried out with leaves of plants and polythene bag.

Now answer the following :

(a) Which process is demonstrated in the activity?

(b) When will this activity show better result – on a bright sunny day or a cloudy day?

(c) What will you observed in the polythene bag after a few hours of setting up the activity?

(d) Mention any one precaution you must take while performing this activity.