Ethylene is used for

1. retarding ripening of tomatoes

2. the hastening of ripening of fruits

3. slowing down the ripening of apples

4. Both 2. and 3.

 

Subtopic:  Ethylene |
 76%
From NCERT
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Coconut water contains

1. ABA

2. auxin

3. cytokinin

4. gibberellin

 

Subtopic:  Cytokinin |
 90%
From NCERT
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The effect of apical dominance can be overcome by which of the following hormone?

1. IAA

2. Ethylene

3. Gibberellin

4. Cytokinin

 

Subtopic:  Cytokinin |
 84%
From NCERT
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Match the Following:

Column I

Column II

A. IAA

B. ABA

C. Ethylene

D. GA

E. Cytokinin

1. Herring sperm DNA.

2. Bolting

3. Stomatal closure

4. Weed-free lawns

5. Ripening of fruits.

Codes
 

Options:  A   B   C   D   E 
1. 4 3 5 2 1
2. 5 3 4 2 1
3. 4 1 4 3 2
4. 5 3 2 4

 

Subtopic:  Auxin Function | Gibberellin | Cytokinin | Ethylene | Abscisic Acid |
 93%
From NCERT
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The term synergistic action of hormones refers to

1. When two hormones act together but bring about opposite effects.
2. When two Hormones act together and contribute to the same function.
3. When one Hormone affects more than one function
4. When many hormones bring about anyone function

Subtopic:  Abscisic Acid |
 80%
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Growth can be measured in various ways. Which of these can be used as parameters to measure growth?

1. increase in cell number

2. increase in cell size

3. increase in length and weight

4. All of these

Subtopic:  Growth |
 98%
From NCERT
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Plasticity in plant growth means that

1. plant roots are extensible

2. plant development is dependent on the environment

3. stems can extend

4. None of the above

Subtopic:  Development |
 90%
From NCERT
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To increase sugar production in sugarcanes, they are sprayed with

1. IAA

2. cytokinin

3. gibberellin

4. ethylene

Subtopic:  Gibberellin |
 95%
From NCERT
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ABA acts as antagonistic to

1. ethylene 2. cytokinin
3. gibberellic acid 4. IAA
Subtopic:  Abscisic Acid |
 89%
From NCERT
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Monocarpic plants are those which

1. bear flowers with one ovary

2. flower once and die

3. bear only one flower

4. All of these

 

Subtopic:  Vernalization (OLD NCERT) |
 57%
From NCERT
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