Question

Activity 7.2
Fill a conical flask with water,
Cover the neck of the flask with a wire mesh.
Keep two or three freshly germinated bean
seeds on the wire mesh.
Take a cardboard box which is open from one
side.
Keep the flask in the box in such a manner
that the open side of the box faces light coming
from a window (Fig. 7.5).
After two or three days, you will notice that
the shoots bend towards light and roots away
from light.
Now turn the flask so that the shoots are away
from light and the roots towards light. Leave it
undisturbed in this condition for a few days.
Have the old parts of the shoot and root
changed direction?
Are there differences in the direction of the new
growth?
What can we conclude from this activity?​

Answer 1

Answer:

Yes the old parts of the shoot and root changed direction.

Yes there differences in the direction of the new growth.

This activity concludes positive phototropism.

Answer 2

your answer is correct ok