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प्रश्न
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.
| Auxins, Abscisic acid, Fruit ripening, Cytokinins, Closure of stomata, Parthenocarpy, Ethylene, Gibberellins, Tropism, Stem elongation, Cuscuta, Cell division. |
उत्तर
Auxins − parthenocarpy
Ethylene − Fruit Ripening
Cytokinins − Cell Division
Abscisic acid − Closure of stomata
Gibberellins − Stem elongation
संबंधित प्रश्न
Which of the following hormones regulate stomatal colour?
Stems are
Match the items in column A with those of column B.
| Column A | Column B | ||
| (a) | Auxin | (i) | apical dominance |
| (b) | Gibberellin | (ii) | cell-division |
| (c) | Cytokinin | (iii) | fruit ripening |
| (d) | Ethylene | (iv) | internodal elongation |
List five plant growth hormones and briefly describe their roles.
The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following questions:
- Name the scientific phenomenon that is being overcome by pruning.
- What plant hormone is responsible for the scientific phenomenon mentioned in (a)?
- Name one plant hormone which inhibits the said phenomenon.
Multiple choice question.
Abscisic acid controls ______.
A farmer is fed up of weeds in his Wheat farm. Which of the following chemicals he can use to overcome the problem?
Which hormone induces parthenocarpy in tomatoes?
Cause of degreening is ______.
Identify the INCORRECT statement regarding physiological effects of ethylene.
