Advertisements
Advertisements
प्रश्न
Why is ABA known as antitranspirant?
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
How does chemical coordination occur in plants?
Name the following:
Hormone that stimulates growth by cell division.
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 question :
What plant hormone is responsible for the scientific phenomenon mentioned in 1.1.
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.
Which is employed for the artificial ripening of banana fruits?
Conversion of nitrates to nitrogen is called ______.
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.
Match the column A with B
A | B | |
i. | Epinasty of flower | GA3 |
ii. | Natural auxin | NAA |
iii. | Flowering in Litchi | IAA |
iv. | Bolting of Beet | Ethylene |
Which of the following is a NOT a naturally occurring phytohormone?
First cytokinin was discovered by Skoog and Miller while working on tissue culture of ____________ plant.