Class 11 Biology - Chapter Mineral Nutirtion NCERT Solutions | Why is purification of water and nutrien
Why is purification of water and nutrient salts so important in studies involving mineral nutrition using hydroponics?
Hydroponics is the art of growing plants in a nutrient solution in the absence of soil. Since the plant roots are exposed to a limited amount of the solution, there are chances that the concentrations of oxygen and other minerals in the plant roots would reduce. Therefore, in studies involving mineral nutrition using hydroponics, purification of water and nutrient salts is essential so as to maintain an optimum growth of the plants.
More Questions From Class 11 Biology - Chapter Mineral Nutirtion
- Q:-
What are the steps involved in formation of a root nodule?
- Q:- Explain with examples: macronutrients, micronutrients, beneficial nutrients, toxic elements and essential elements.
- Q:- All elements that are present in a plant need not be essential to its survival. Comment.
- Q:- 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 they are required only in trace quantities. - Q:- What are the conditions necessary for fixation of atmospheric nitrogen by Rhizobium. What is their role in N2 -fixation?
- Q:- How are the minerals absorbed by the plants?
- Q:- Name at least five different deficiency symptoms in plants. Describe them and correlate them with the concerned mineral deficiency.
- Q:- 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?
- Q:- 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?
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