Select Question Set:
Q. No.Ethylene:
I:
is used to initiate flowering and for synchronising fruit-set in pineapples.
II:
induces flowering in mangoes.
1. Only I is correct
2. Only II is correct
3. Both I and II are incorrect
4. Both I and II are correct
Subtopic: Ethylene |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two statements:
Assertion: The most widely used compound as source of ethylene is ethephon.
Reason: Ethephon in an aqueous solution is readily absorbed and transported within the plant
and releases ethylene slowly.
1. Both Assertion and Reason are true and Reason correctly explains the Assertion.
2. Both Assertion and Reason are true but Reason does not correctly explain the Assertion.
3. Assertion is true; Reason is false.
4. Assertion is false; Reason is true.
Assertion: The most widely used compound as source of ethylene is ethephon.
Reason: Ethephon in an aqueous solution is readily absorbed and transported within the plant
and releases ethylene slowly.
1. Both Assertion and Reason are true and Reason correctly explains the Assertion.
2. Both Assertion and Reason are true but Reason does not correctly explain the Assertion.
3. Assertion is true; Reason is false.
4. Assertion is false; Reason is true.
Subtopic: Ethylene |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Seed germination is inhibited by ABA in antagonism with:
1. Auxins
2. Ethylene
3. Kinetins
4. GAs
1. Auxins
2. Ethylene
3. Kinetins
4. GAs
Subtopic: Gibberellin | Abscisic Acid |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Rapid multiplication leads to ‐
1. Geometrical Progression
2. Natural selection
3. Suvival of fittest
4. Struggle for Existence
1. Geometrical Progression
2. Natural selection
3. Suvival of fittest
4. Struggle for Existence
Subtopic: Growth |
81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements
In light of the above statements, choose the correct answer from the options given below
| Statement I: | Flowering in some plants depends on the relative duration of light and dark exposure |
| Statement II: | Some plants require the exposure of light for a period exceeding a well‐defined critical duration and are called long‐day plants |
| 1. | Both Statement I and Statement II are true |
| 2. | Both Statement I and Statement II are false |
| 3. | Statement I is true but Statement II is false |
| 4. | Statement I is false but Statement II is true |
Subtopic: Photoperiodism (OLD NCERT) |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Match List I with List II
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
| 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 |
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 |
80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
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
Please attempt this question first.
Hints
Please attempt this question first.
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 |
55%
Please attempt this question first.
Hints
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 |
Please attempt this question first.
Hints
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
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2024 GoodEd Technologies Pvt. Ltd.