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प्रश्न
Give one example of chemotropism. State whether this example is of positive chemotropism or negative chemotropism.
उत्तर
The growth of a pollen tube towards the ovule induced by a sugary stimulus is an example of chemotropism. This is an example of positive chemotropism as the pollen tube grows towards the stimulus.
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संबंधित प्रश्न
Plant parts show two types of movements, one dependent on growth and other independent of growth. Give one example which does not depend on growth
Name the plant part which bends towards light but away from the force of gravity.
A plant's response to light is called ______.
Why is the closing of a dandelion flower at dusk (when it gets dark) not a tropism?
Define geotropism.
The movement of a plant part in response to the force of attraction exerted by the earth is called :
(a) hydrotropism
(b) geotropism
(c) chemotropism
(d) phototropism
Roots of plants are:
Any change in the environment to which an organism responds is called ____________.
Name the following:
The tropic movement of plant parts in response to chemicals.
Differentiate between:
Positive and negative tropism
