COLUMN I | COLUMN II | ||
A | Elements that are components of biomolecules | P | C, H, O, N |
B | Elements that are components of energy – related chemical compounds | Q | Mg, P |
C | Elements that activate or inhibit enzymes | R | Zn, Mo, Mg |
D | Elements that can alter the osmotic potential of the soil | S | K |
A | B | C | D | |
1. | P | Q | R | S |
2. | Q | R | S | P |
3. | R | S | P | Q |
4. | S | R | Q | P |
I: | Deficiency symptoms of nitrogen, potassium and magnesium are visible first in the senescent leaves. |
II: | These elements are a part of the structural component of the cell and hence are not easily released. |
1. | Both I and II are correct and II explains I |
2. | Both I and II are correct but II does not explain I |
3. | I is correct and II is incorrect |
4. | I is incorrect and II is correct |
1. | in the roots of non-leguminous plants like Alnus but unlike Rhizobium does not form any root nodules |
2. | in the roots of leguminous plants like Soybean but unlike Rhizobium does not form any root nodules |
3. | in the roots of non-leguminous plants like Alnus and like Rhizobium forms root nodules |
4. | in the roots of leguminous plants like Soybean and like Rhizobium forms root nodules |