Abscisic Acid And Ethylene
Abscisic Acid And Ethylene
Abscisic acid: Abscisic acid is a growth inhibitor that reverses the growth-promoting effects of auxins and gibberellins. It is also called as antigibberellins. It causes dormancy of seeds, tubers and bulbs. It promotes leaf and fruit fall. It helps in the closure of the stomata to decrease the loss of water or reduce transpiration.
Ethylene : Ethylene is a gaseous hormone that acts at trace levels throughout the life of the plant. It is also known as ripening hormone. Ethylene also induces epinasty, leaf abscission,induces flowering in pine apples and checks the elongation in stem and root. However it promotes rooting like auxin.
Functions of Ethylene:
Which the following are correct matches : - (i) Auxin - Promote apical growth of plant (ii) Gibbierellins - Accelerate senescence and abscession of leaves. (iii) Ethylene - Promotes stem elongation (iv) ABA - inhibit germination of seeds. | |||
| Right Option : C | |||
| View Explanation | |||
Name the hormone where activity can be reversed by kinetins ? | |||
| Right Option : C | |||
| View Explanation | |||
Leaf fall can be prevented by ______________ | |||
| Right Option : C | |||
| View Explanation | |||
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I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
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8thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
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Aman Kumar Shrivastava
10thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Aman Kumar Shrivastava
10thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
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8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
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8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
