Please solve d1,2 3.
The response of plants to gravity is known as
geotropism. How are plant parts sensitive to
gravity ? Describe with the help of a diagram.
What is meant by positive and negative tropic
movements in plants ? Explain them by giving
With the help of an experirnent, prove that roots are
more positively hydrotropic than geotropic.
I. The tea plants are never allowed to grow
lengthwise. This is done by cutting their apical
buds, a process known as pruning. In this way, tea
plants get a dense growth and easy yield. Answer
the following questions :
(a) Name the scientific phenomenon that is being
overcome by pruning.
(b) What plant hormone is responsible for the
scientific phenomenon mentioned in (a).
(c) Name one plant hormone which inhibits the said
2. The figure given below shows the stages of ripening
in a banana. Answer the questions that follow