- 1(current)
Q. No.Which one of the following pairs is wrongly matched?
1. Delayed flowering - N, S, Mo
2. Inhibition of cell division - Ca, Mo, Cu
3. Components of biomolecules - C, H, O, N
and cell
4. Components of energy - Mg, p
-related molecules
Which of the following statements is correct?
(a) The deficiency of any element can cause multiple symptoms.
(b) The same symptoms may be caused by the deficiency of one of several different elements.
(c) The concentration of the essential below which plant growth is retarded is termed as critical concentration.
(d) Chlorosis is the loss of chlorophyll due to the deficiency of N, K, Mg, Fe, S, Mn, Zn, and Mo.
(e) Different plants respond differently to the deficiency of the same element.
(1) All of these
(2) Only (a) and (d)
(3) Only (a) and (c)
(4) Only (c) and (d)
Reason(R): In order to identify the deficient element, one has to study all the symptoms developed in all the various parts of the plants.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): They are a part of the structural components of a cell.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Each element has at least one specific structural or functional role in plants.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Manganese inhibits calcium translocation in the shoot apex.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
- 1(current)
Q. No.
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