Q. No.Match the element with its associated functions/roles and choose the correct option among given below:
A. Boron
B. Manganese
C. Molybdenum
D. Zinc
E. Iron
1. Splitting of H2O to liberate O2 during photosynthesis
2. Needed for synthesis of auxins
3. Component of nitrogenase
4. Pollen germination
5. Component of ferredoxin
Codes
1. 1, 2, 3, 4, 5
2. 4, 1, 3, 2, 5
3. 3, 2, 4, 5, 1
4. 2, 3, 5, 1, 4
A. Boron
B. Manganese
C. Molybdenum
D. Zinc
E. Iron
1. Splitting of H2O to liberate O2 during photosynthesis
2. Needed for synthesis of auxins
3. Component of nitrogenase
4. Pollen germination
5. Component of ferredoxin
Read the following four statements (I-IV):
| I. | Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane |
| II. | In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth |
| III. | Stamens in flowers of Gloriosa and Petunia are polyandrous |
| IV. | Symbiotic nitrogen-fixers occur in a free-living state and also in soil |
How many of the above statements are right?
1. Three
2. Four
3. One
4. Two
Match the following concerning essential elements and their functions in plants :
| (a) | Iron | (i) | Photolysis of water |
| (b) | Zinc | (ii) | Pollen germination |
| (c) | Boron | (iii) | Required for chlorophyll biosynthesis |
| (d) | Manganese | (iv) | IAA biosynthesis |
Select the correct option:
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (ii) | (i) | (iv) | (iii) |
Match the following concerning essential elements and their functions in plants:
| Column I | Column II | ||
| (a) | Iron | (i) | Photolysis of water |
| (b) | Zinc | (ii) | Pollen germination |
| (c) | Boron | (iii) | Required for chlorophyll biosynthesis |
| (d) | Manganese | (iv) | IAA biosynthesis |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (ii) | (i) | (iv) | (iii) |
A : The +-- fixing bacteria become anaerobic during fixing events.
R : The enzyme nitrogenase is highly sensitive to the molecular oxygen.
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark(1).
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
3. If Assertion is true statement but reason is false, then mark (3).
4. If both Assertion and Reason are false statements, then mark (4).
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
Match the following element with proper function
Column-l Column-ll
a. S (i) Metabolism of urea
b. Mn (ii) Nodule formation
c. Ca (iii) Photolytic evolution of oxygen
d. Ni (iv) Organisation of mitotic spindle
1. a(iii), b(ii), c(iv), d(i)
2. a(ii), b(iii), c(iv), d(i)
3. a(iii), b(ii), c(i), d(iv)
4. a(ii), b(i), c(iii), d(iv)
| List I | List II | ||
| A. | Manganese | I. | Pollen germination |
| B. | Potassium | II. | Chlorosis in older leaves |
| C. | Magnesium | III. | Necrosis |
| D. | Boron | IV. | Photosynthesis |
Choose the correct answer from the options given below:
1. A-IV, B-III, C-I, D-II
2. A-II, B-I, C-IV, D-III
3. A-II, B-III, C-IV, D-I
4. A-IV, B-III, C-II, D-I
| List-I | List-II | ||
| A. | Nitrification | I. | Azotobacter |
| B. | Denitrification | II. | Nitrotobacter |
| C. | Free-living nitrogen fixation | III. | Rhizobium |
| D. | Symbiotic nitrogen fixation | IV. | Pseudomonas |
Choose the correct answer from the options given below:
1. A -III, B - IV, C-II, D - I
2. A -II, B - I, C-IV, D - III
3. A -II , B - IV, C-I, D - III
4. A -IV , B - II , C-III, D - I
| List I | List II |
| A. Boron | I. Splitting of water during photosynthesis |
| B. Manganese | II. Synthesis of auxin |
| C. Molybdenum | III. Component of nitrogenase |
| D. Zinc | IV. Pollen germination |
Choose the correct answer from the options given below:
1. A -IV, B-I, C-III, D-II
2. A -II, B-I, C-III, D-IV
3. A -II, B-III, C-I, D-IV
4. A -III, B-II, C-IV D-I
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