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प्रश्न
Study the diagram given below and answer the questions that follow:
- Name the phenomenon depicted by the shoot in the above diagram.
- Which plant hormone plays an important role in the above movement?
- Complete and rewrite the given statement by filling in the correct terms:
Shoots show positive ______ whereas, roots show positive ______.
टीपा लिहा
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उत्तर
- Phototropism of plant.
- Auxin hormone.
- Shoots show positive phototropism whereas, roots show positive geotropism.
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संबंधित प्रश्न
Which of the following is not a plant hormone?
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.
First natural cytokinin was obtained from ______.
Buyers often complain that a particular fruit merchant uses some chemical to ripen fruits in his shop.
Name the chemical he must be using to do so.
A gardener wants to give bushy appearance to plants in our college campus.
- What should he do to achieve the same?
- Which property of phytohormones he must be aware of?
Which hormone induces parthenocarpy in tomatoes?
The active ingredient of Agent Orange is an egual mixture of two phenoxy herbicides ____________.
Cause of degreening is ______.
The only phytohormone which is a gas at ordinary temperature:
