| ⇦ | 
| ⇨ |
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.
Related Questions: - Symbiosis is shown by
- Ascaris is characterized by
- Cervical vertebrae are located in
- The lining of intestinal wall from outside to inside is made up of
- Liver and pancreas of frog and rabbit are derived from
Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Symbiosis is shown by
- Ascaris is characterized by
- Cervical vertebrae are located in
- The lining of intestinal wall from outside to inside is made up of
- Liver and pancreas of frog and rabbit are derived from
Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply