Biology
Answer
| Thigmotropism | Geotropism |
|---|---|
| Directional growth movement of a plant part in response to the touch of an object. | Directional growth movement of a plant part in response to gravity. |
| Example — Plants such as sweet peas, Cuscuta and vines have tendrils which coil around other plants in response to one sided contact or touch. | Example — Growth of roots of plants in downward direction. |
Related Questions
The box given below contains twelve words. Out of these, ten can be arranged in five suitable matching pairs. Make these five pairs in the form of a table.
Auxin, Abscisic acid, Fruit ripening, Cytokinins, Closure of stomata, Parthenocarpy, Ethylene, Gibberellins, Tropism, Stem elongation, Cuscuta, Cell division Define the following terms:
(a) Phytohormones
(b) Tropism
(c) Clinostat
(d) Apical dominance
(e) Parthenocarpy
(f) Abscission
(g) Heliotropism
Differentiate between Positive and negative tropism
Differentiate between Stimulus and response