Advertisements
Advertisements
प्रश्न
Why is ABA known as antitranspirant?
Advertisements
उत्तर
ABA can cause efflux of K+ ions from the guard cells and result in closure of stomata. So, it is known as an anti-transpirant.
APPEARS IN
संबंधित प्रश्न
Answer the following question.
What are plant hormones? Name the plant hormones responsible for the following:
- Growth of stem
- Promotion of cell division
- Inhibition of growth
- Elongation of cells
Multiple choice question.
How many molecules of ATP are required to fix one molecule of nitrogen?
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.
Write the name of______
- First hormone discovered in plants.
- Biological name of fungus from which Gibberellins were first isolated.
- The name given to the first cytokinin by Skoog and Miller.
Write full form of 2,4-D
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?
Which among the following is the CORRECT statement regarding ethylene?
A plant growth inhibitor hormone which causes wilting of leaves is ______.
The only phytohormone which is a gas at ordinary temperature:
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. |
