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Fall of immature leaf is due to the deficiency of
Options
(a) sodium
(b) sulphur
(c) zinc
(d) phosphorus
Correct Answer:
zinc
Explanation:
Zinc plays an important role in the synthesis of tryphtophan which is precursor of auxin.Its deficiency causes immature fall of young leaves due to formation of abscission layer which is prevented by auxin and zinc plays an important role in auxin formation.Sulphur is a component of protoplasm and favours root formation.Phosphorus is essential constituent of DNA,RNA and nucleoproteins.It is an energy carrier and forms a part of ATP,ADP and NADP.
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Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The idea that life orginates from pre-existing life is referred as
- Homo erectus erectus is the scientific name of
- Which of the following is radially symmetrical
- An insecticide extracted from the leaves of neem is
- Frogs and toads belong to the order
Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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