Match List I with List II
List I
List II
A.
IAA
I.
Bolting
B.
ABA
II.
Ripening of Fruits
C.
GA
III.
Weed Free Lawns
D.
Ethylene
IV.
Stomatal Closure
Choose the correct answer from the options given below:
1.
A ‐ IV , B ‐ III , C ‐ II , D ‐ I
2.
A ‐ III , B ‐ IV , C ‐ I , D ‐ II
3.
A ‐ IV , B ‐ III , C ‐ I , D ‐ II
4.
A ‐ III , B ‐ IV , C ‐ II , D ‐ I
Subtopic: Auxin Function | Gibberellin | Ethylene | Abscisic Acid |
83%
From NCERT
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Which of the following statements for plant growth is incorrect?
1. It is localised
2. It is open ended
3. It is indeterminate
4. It does not involve increase in number of parts
1. It is localised
2. It is open ended
3. It is indeterminate
4. It does not involve increase in number of parts
Subtopic: Growth |
78%
From NCERT
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Optimum temperature required for the proper growth in most of the plants is
1. 30-45°C
2. 10-20°C
3. 28-30°C
4. 0-10°C
1. 30-45°C
2. 10-20°C
3. 28-30°C
4. 0-10°C
Subtopic: Growth |
59%
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Find odd one w.r.t. tissues developed by the process of redifferentiation
1. Secondary cortex
2. Secondary xylem
3. Phellem
4. Phellogen
1. Secondary cortex
2. Secondary xylem
3. Phellem
4. Phellogen
Subtopic: Growth |
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Which of the given plant shows plasticity in response to its prevailing environment?
1. Larkspur
2. Buttercup
3. Cotton
4. Coriander
1. Larkspur
2. Buttercup
3. Cotton
4. Coriander
Subtopic: Development |
86%
From NCERT
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Who performed the experiments using canary grass to demonstrate the curvature of tip?
1. E. Kurosawa
2. F. Skoog
3. Went
4. Darwin
1. E. Kurosawa
2. F. Skoog
3. Went
4. Darwin
Subtopic: Growth Hormones & Auxin |
73%
From NCERT
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Subtopic: Growth Hormones & Auxin |
75%
From NCERT
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During differentiation of xylem
| 1. | End walls are lost in tracheids |
| 2. | Loss of protoplasm occurs in vessels |
| 3. | Lignified thickening develops in tracheary elements |
| 4. | More than one option is correct |
Subtopic: Auxin Function |
79%
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2, 4-D is
| 1. | Widely used to kill monocots |
| 2. | Effective weedicides against broad-leaved plants |
| 3. | Used to prevent lodging and root initiation |
| 4. | Used to promote flowering in pineapple and mango |
Subtopic: Growth Hormones & Auxin |
76%
From NCERT
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Select an incorrect statement
| 1. | Auxin promotes xylem differentiation |
| 2. | NAA is used to overcome apical dominance |
| 3. | Auxins help to prevent fruit and leaf drop at early stages |
| 4. | Auxins prevent lodging of cereals |
Subtopic: Growth Hormones & Auxin | Cytokinin |
73%
From NCERT
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