Advertisements
Advertisements
प्रश्न
Stems are
विकल्प
positively geotropic and negatively phototropic
positively geotropic and positively phototropic
negatively geotropic and positively phototropic
negatively phototropic and negatively geotropic
Advertisements
उत्तर
negatively geotropic and positively phototropic
संबंधित प्रश्न
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 |
Multiple choice question.
Abscisic acid controls ______.
Very Short Answer Question:
What is role of gibberellin in rosette plants?
Gibberellins are synthesised from ______.
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?
Name the phytohormone related with the given phenomenon.
- Apical dominance
- Bolting of Cabbage
- Artificial ripening of fruit
- Acts as Anti-transpirant by closing stomata
Cause of degreening is ______.
Coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly cut coleoptile stumps.
What is the significance of the above experiment performed by Dr. F. Went?
Differentiate between:
Stimulus and response
Which one of the following pair of plant hormones inhibit flowering in some plants?
