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प्रश्न
Name the stimulus which causes the following movement in plant:
Thigmotropism
उत्तर
touch
संबंधित प्रश्न
What is the stimulus in geotropism?
What does a stem (or shoot) do in response to light? What is this phenomenon known as?
Give one example of chemotropism. State whether this example is of positive chemotropism or negative chemotropism.
Name the plant part which bends in the direction of gravity but away from light.
Plant roots grow downward in response to ______.
The plant part which exhibits negative geotropism is :
(a) root
(b) stem
(c) branch
(d) leaves
A growing seedling is kept in a dark room. A burning candle is placed near it for a few days. The top part of seedling bends towards the burning candle. This is an example of :
(a) chemotropism
(b) hydrotropism
(c) phototropism
(d) geotropism
The top part A of the flask-shaped reproductive organ X in the flower of a plant secrets a surgery 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 i the flower falls on part A, it grows a long tube F through the organ X i response to the sugary substance and reaches the bottom part C of flask-shaped organ to carry out fertilisation.
(a) Name parts (i) organ X, and (ii) organ Y, inside the flower?
(b) Name parts (i) A (ii) B, and (iii) C, of flask-shaped organ.
(c) Name (i) grain D, and (ii) part E of organ Y.
(d) Name the tube F.
(e) What is the phenomenon of growing a long tube in response to sugary substance in the process of fertilisation in a flower known as?
When the leaves of the Mimosa pudica plant are touched with a finger, they fold up quickly.
______ of sweet peas exhibit thigmotropism.
