Coordination in Plants
Coordination in Plants: Overview
This topic covers concepts, such as, Coordination in Plants, Plant Responses to Stimuli, Plant Movements, Plant Hormones, Abscisic Acid, Auxin, Gibberellin, Cytokinin, Ethylene, Hydrotropism, Geotropism, Chemotropism & Phototropism etc.
Important Questions on Coordination in Plants
The top part A of the flask-shaped reproductive organ X in the flower of a plant secretes a sugary substance into its lower part B which goes towards the bottom part C of the flask-shaped organ. When a tiny grain D coming from the top part E of another reproductive organ Y in the flower falls on part A, it grows a long tube F through the organ X in response to the sugary substance and reaches the bottom part C of the flask-shaped organ to carry out fertilization.
What is the phenomenon of growing a long tube in response to a sugary substance in the process of fertilization in a flower known as?
Movement of pollen tube towards ovule is an example of chemotropism.
_____ plant hormone is responsible for ripening of fruits.
Ethylene is responsible for cell elongation and differentiation of shoots and roots.
Which plant hormone is responsible for wilting of leaves?
Explain the term : Phototropism
The act of changing the place or position by one or more of the body parts is called_____.
Thigmotropism is the response due to stimulus of
The root grows towards the centre of gravity are said to be
Hydrotropism means growth towards _____.
Which of the following movement in plants is independent of the growth of the plant?
Which hormone helps the plant cells to grow longer?
Which of the following is a plant hormone?
Plant hormone responsible for phototropism is
Write the name of the hormone that is responsible for the promotion of cell division.
A potted plant is growing in a transparent glass jar. In this plant, X and Y are the two growing parts having a lot of meristematic tissue. It is observed that part X of this plant exhibits positive geotropism but negative phototropism. On the other hand, part Y of this plant exhibits negative geotropism but positive phototropism. Name the part Y of the plant.
Which of the following plant hormone causes a delay in leaf senescence?
Which plant hormone is responsible for the plant to bend towards light?
The movement of plant depends on its growth. Such movements are called as:
