Class 11 Biology - Chapter Mineral Nutirtion NCERT Solutions | We find that Rhizobium forms nodules on
We find that Rhizobium forms nodules on the roots of leguminous plants. Also Frankia another microbe forms nitrogen fixing nodules on the roots of non-leguminous plant Alnus.
a. Can we artificially induce the property of nitrogen fixation in a plant – leguminous or non-leguminous?
b. What kind of relationship is observed between mycorrihiza and pine trees?
c. Is it necessary for a microbe to be in close association with a plant to provide mineral nutrition? Explain with the help of one example.
- Yes, we can artificially induce the property of nitrogen fixation in a plant- leguminous and non- leguminous.
- Symbiotic relationship is observed between mycorrhiza and pine trees.
- Yes, it is necessary for a microbe to be in close association with a plant to provide mineral nutrition.
An example of this association is the rod- shaped Rhizobium and several legume like sweet pea, garden pea etc. relationship.
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:- Why is purification of water and nutrient salts so important in studies involving mineral nutrition using hydroponics?
- 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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