Advertisements
Advertisements
Question
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
Solution
In plants, growth, development, and response to the environment are controlled and coordinated by a special class of chemical substances known as phytohormones. They are naturally occurring organic substances which are synthesized in minute quantities. These hormones are produced in one part of the plant body and are translocated to other parts. For example, a hormone produced in the roots is translocated to other parts where they are required.
- Gibberellins
- Cytokinins
- Abscisic acid
- Auxins
RELATED QUESTIONS
Name the following:
Growth-retarding hormone in plants.
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.
Very Short Answer Question:
Which is the plant stress hormone?
First natural cytokinin was obtained from ______.
Name the tissue that transports hormones within the plant body?
Cause of degreening is ______.
Antidiuresis is the role of ______ hormone.
Give one example of Parthenocarpy.
The response by parts of the plant towards stimulus is called as ______.
Differentiate between:
Stimulus and response
