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CBSE Video lectures for download

     

=Chapter 1 The Living World

=Chapter 2 Biological Classification

=Chapter 3 Plant Kingdom

=Chapter 4 Animal Kingdom

=Chapter 5 Morphology of Flowering Plants

=Chapter 6 Anatomy of Flowering Plants

=Chapter 7 Structural Organisation in Animals

=Chapter 8 Cell The Unit of Life

=Chapter 9 Biomolecules

=Chapter 10 Cell Cycle and Cell Division

=Chapter 11 Transport in Plants

=Chapter 12 Mineral Nutrition

=Chapter 13 Photosynthesis in Higher Plants

=Chapter 14 Respiration in Plants

=Chapter 15 Plant Growth and Development

=Chapter 16 Digestion and Absorption

=Chapter 17 Breathing and Exchange of Gases

=Chapter 18 Body Fluids and Circulation

=Chapter 19 Excretory Products and their Elimination

=Chapter 20 Locomotion and Movement

=Chapter 21 Neural Control and Coordination

=Chapter 22 Chemical Coordination and Integration

 

Chapter 12 Mineral Nutrition

Download NCERT Solutions for Class 11 Biology

Chapter 12 Mineral Nutrition

(Link of Pdf File is given below at the end of the Questions list)

In this pdf file you can see answers of following Questions

 

Question 1:
‘All elements that are present in a plant need not be essential to its survival’.Comment.
Question 2:
Why is purification of water and nutrient salts so important in studies involving mineral nutrition using hydroponics?
Question 3:
Explain with examples: macronutrients, micronutrients, beneficial nutrients, toxic elements and essential elements.
Question 4:
Name at least five different deficiency symptoms in plants. Describe them andcorrelate them with the concerned mineral deficiency.
Question 5:
If a plant shows a symptom which could develop due to deficiency of more than one nutrient, how would you find out experimentally, the real deficient mineral element?
Question 6:
Why is that in certain plants deficiency symptoms appear first in younger parts of the plant while in others they do so in mature organs?
Question 7:
How are the minerals absorbed by the plants?
Question 8:
What are the conditions necessary for fixation of atmospheric nitrogen by RhizobiumWhat is their role in N2 -fixation?

Question 9:
What are the steps involved in formation of a root nodule?

Question 10:
Which of the following statements are true? If false, correct them:
(a) Boron deficiency leads to stout axis.
(b) Every mineral element that is present in a cell is needed by the cell.
(c) Nitrogen as a nutrient element, is highly immobile in the plants.
(d) It is very easy to establish the essentiality of micronutrients because theyare required only in trace quantities.



 



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