167018
A plant bearing different type of leaves is called:
1 heterophylly
2 heterotrophy
3 heterozygosity
4 heteronasty
Explanation:
A A plant bearing different type of leaves is called heterophylly. It is the development of different leaf forms in a single plant depending on the environmental conditions. It is observed in amphibious aquatic plants that can grow under both aerial and submerged condition.
[Haryana PMT-2006]
Plant growth and development
167019
Which type of movement is present in Mimosa pudica?
1 Nyctinastic
2 Seismonastic
3 Chemonastic
4 Phototrophic
Explanation:
B Seismic movement is present in Mimosa pudica. The extent of the seismonastic movement depends upon factors like the intensity of the stimulus, the vigor and age of the plant and therefore the time elapsed since the last stimulus. The non directional movement of a plant part in response to an external stimulus is known as a nastic movement to the stimulus that is attained by the plant can be in the form of biological, electrical, chemical touch etc.
[Rajasthan PMT-2006
Plant growth and development
167020
A sleep movement in plants is a nastic response, that occurs daily in response to
1 dark
2 light
3 water
4 both (a) and (b)
Explanation:
D Nyctinasty is the proper name for the "sleep movement of leaves" is a well know example of a nastic response. In this, plants close up their leaves and petals in response to the one set of darkness by changes in cellular turgor.
[AMU-2005]
Plant growth and development
167021
Which of the following movement is induced by injury ?
1 Aerotropism
2 Geotropism
3 Tromonasty
4 Traumatropism
Explanation:
D Traumatropism is the growth response a pound or the growth movement of the plant as result of injury. Unilateral injury to the tip of a root produce negative traumatropism that is bending of the root in a opposite direction to the injured side. Unilateral injury the shoot apex produce positive traumatropism that is bending in toward direction of the injury.
167018
A plant bearing different type of leaves is called:
1 heterophylly
2 heterotrophy
3 heterozygosity
4 heteronasty
Explanation:
A A plant bearing different type of leaves is called heterophylly. It is the development of different leaf forms in a single plant depending on the environmental conditions. It is observed in amphibious aquatic plants that can grow under both aerial and submerged condition.
[Haryana PMT-2006]
Plant growth and development
167019
Which type of movement is present in Mimosa pudica?
1 Nyctinastic
2 Seismonastic
3 Chemonastic
4 Phototrophic
Explanation:
B Seismic movement is present in Mimosa pudica. The extent of the seismonastic movement depends upon factors like the intensity of the stimulus, the vigor and age of the plant and therefore the time elapsed since the last stimulus. The non directional movement of a plant part in response to an external stimulus is known as a nastic movement to the stimulus that is attained by the plant can be in the form of biological, electrical, chemical touch etc.
[Rajasthan PMT-2006
Plant growth and development
167020
A sleep movement in plants is a nastic response, that occurs daily in response to
1 dark
2 light
3 water
4 both (a) and (b)
Explanation:
D Nyctinasty is the proper name for the "sleep movement of leaves" is a well know example of a nastic response. In this, plants close up their leaves and petals in response to the one set of darkness by changes in cellular turgor.
[AMU-2005]
Plant growth and development
167021
Which of the following movement is induced by injury ?
1 Aerotropism
2 Geotropism
3 Tromonasty
4 Traumatropism
Explanation:
D Traumatropism is the growth response a pound or the growth movement of the plant as result of injury. Unilateral injury to the tip of a root produce negative traumatropism that is bending of the root in a opposite direction to the injured side. Unilateral injury the shoot apex produce positive traumatropism that is bending in toward direction of the injury.
167018
A plant bearing different type of leaves is called:
1 heterophylly
2 heterotrophy
3 heterozygosity
4 heteronasty
Explanation:
A A plant bearing different type of leaves is called heterophylly. It is the development of different leaf forms in a single plant depending on the environmental conditions. It is observed in amphibious aquatic plants that can grow under both aerial and submerged condition.
[Haryana PMT-2006]
Plant growth and development
167019
Which type of movement is present in Mimosa pudica?
1 Nyctinastic
2 Seismonastic
3 Chemonastic
4 Phototrophic
Explanation:
B Seismic movement is present in Mimosa pudica. The extent of the seismonastic movement depends upon factors like the intensity of the stimulus, the vigor and age of the plant and therefore the time elapsed since the last stimulus. The non directional movement of a plant part in response to an external stimulus is known as a nastic movement to the stimulus that is attained by the plant can be in the form of biological, electrical, chemical touch etc.
[Rajasthan PMT-2006
Plant growth and development
167020
A sleep movement in plants is a nastic response, that occurs daily in response to
1 dark
2 light
3 water
4 both (a) and (b)
Explanation:
D Nyctinasty is the proper name for the "sleep movement of leaves" is a well know example of a nastic response. In this, plants close up their leaves and petals in response to the one set of darkness by changes in cellular turgor.
[AMU-2005]
Plant growth and development
167021
Which of the following movement is induced by injury ?
1 Aerotropism
2 Geotropism
3 Tromonasty
4 Traumatropism
Explanation:
D Traumatropism is the growth response a pound or the growth movement of the plant as result of injury. Unilateral injury to the tip of a root produce negative traumatropism that is bending of the root in a opposite direction to the injured side. Unilateral injury the shoot apex produce positive traumatropism that is bending in toward direction of the injury.
167018
A plant bearing different type of leaves is called:
1 heterophylly
2 heterotrophy
3 heterozygosity
4 heteronasty
Explanation:
A A plant bearing different type of leaves is called heterophylly. It is the development of different leaf forms in a single plant depending on the environmental conditions. It is observed in amphibious aquatic plants that can grow under both aerial and submerged condition.
[Haryana PMT-2006]
Plant growth and development
167019
Which type of movement is present in Mimosa pudica?
1 Nyctinastic
2 Seismonastic
3 Chemonastic
4 Phototrophic
Explanation:
B Seismic movement is present in Mimosa pudica. The extent of the seismonastic movement depends upon factors like the intensity of the stimulus, the vigor and age of the plant and therefore the time elapsed since the last stimulus. The non directional movement of a plant part in response to an external stimulus is known as a nastic movement to the stimulus that is attained by the plant can be in the form of biological, electrical, chemical touch etc.
[Rajasthan PMT-2006
Plant growth and development
167020
A sleep movement in plants is a nastic response, that occurs daily in response to
1 dark
2 light
3 water
4 both (a) and (b)
Explanation:
D Nyctinasty is the proper name for the "sleep movement of leaves" is a well know example of a nastic response. In this, plants close up their leaves and petals in response to the one set of darkness by changes in cellular turgor.
[AMU-2005]
Plant growth and development
167021
Which of the following movement is induced by injury ?
1 Aerotropism
2 Geotropism
3 Tromonasty
4 Traumatropism
Explanation:
D Traumatropism is the growth response a pound or the growth movement of the plant as result of injury. Unilateral injury to the tip of a root produce negative traumatropism that is bending of the root in a opposite direction to the injured side. Unilateral injury the shoot apex produce positive traumatropism that is bending in toward direction of the injury.
