Chemotropism
Trending Questions
What is the difference between the manner in which movement takes place in a sensitive plant and the movement in our legs?
How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?
Define chemotropism. Give one example of chemotropism. State whether this example is of positive chemotropism or negative chemotropism.
The leaves of touch-me-not plant shows chemotropism.
- True
- False
The movement of shoot towards light is:
Geotropism
Hydrotropism
Chemotropism
Phototropism
The movement of plants towards water sources is called
The movement of sunflower in accordance with the path of the sun is due to
(a) phototropism
(b) geotropism
(c) chemotropism
(d) hydrotropism
The top part A of the flask-shaped reproductive organ X in the flower of a plant secretes 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 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 fertilisation.
(a) What is (i) organ X, and (ii) organ Y, inside the flower?
(b) Name parts (i) A (ii) B, and (iii) C, of a 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 a sugary substance in the process of fertilisation in a flower knows as?
What is a tropic movement? Explain with an example.

- chemo
- geo
The growth of a pollen tube towards the ovule caused by a sugary substance as a stimulus in an example of :
(a) phototropism
(b) chlorotropism
(c) gravitropism
(d) chemotropism
Twining tendrils are due to ____.
Movement of a plant toward water is an example of:
Phototropism
Geotropism
Hydrotropism
Haptonastic movement
Female sex cells is present inside the ___.
- directional
- non-directional
- nastic
- growth dependent
- phototropism
- chemotropism
- hydrotropism
- geotropism
Question 18
The growth of pollen tubes towards ovules is due to
(a) hydrotropism
(b) chemotropism
(c) geotropism
(d) phototropism
- Phototropism
- Hydrotropism
- Gravitropism
- Chemotropism
- True
- False
(a) What is (i) organ X, and (ii) organ Y, inside the flower?
- Geotropism
- Hydrotropism
- Thigmotropism
- Chemotropism
- Gravitropism
- Phototropism
- Hydrotropism
- Chemotropism
(c) Name (i) grain D, and (ii) part E of organ Y.
How chemotropism can be demonstrated?
- Chemotropism
- Hydrotropism
- Phototropism
- Geotropism
- Chemotropism
- Thermotaxis
- Geotropism
- Hydrotopism