271722
In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through :
1 aerenchyma
2 trichomes
3 pneumatophores
4 lenticels
Explanation:
Exp:D Lenticles : In place of cork cells complementary cells are thin walled, Parenchymatous loosely arranged have large intercellular spaces, due to increase of number of complementary cells, epidermis ruptured lens core is formed called lenticles exchange of gases occur.
Haryana PMT-2004
Anatomy of Flowering Plants
271724
Stele comprises consists
1 xylem, phloem and pith
2 endodermis, xylemand phloem
3 vascular tissue, pericycle and pith
4 vascular tissue, endodermis and pith
Explanation:
Exp:C According to concept hypothesis of stele proposed by van Tieghem, the stele consists of vascular tissue, ground tissue or pith and a pericycle. The primary body of root and stem are anatomically same i.e. consist of central stele surrounded by cortex. The stele was oriented in first vascular plant (pteridophytes) and it consist of vascular tissue pericycle and pith pericycle surrounds the stele on the outer side.
Manipal-2013
Anatomy of Flowering Plants
271726
The monocotyledonous seed consists of one large and shield shaped cotyledon known as a/an
1 Coleoptile
2 Scutellum
3 Aleurone layer
4 Coleorhiza
Explanation:
Exp:B Monocotyledonaus seed has embryos that bases only one large cotyledon called scutellum. Generally, the scutellum is shaped like a shield. Its located laterally towards the side of the embryo axis like dicotyledons the embryo axis of monocotyledons process a shoot tip called the plumule.
J and K CET-2015
Anatomy of Flowering Plants
271727
Stomata open at night and close during day time in:
1 succulents
2 xerophytes
3 hydrophytes
4 mesophytes
Explanation:
Exp:A In succulent plants like Cacti and Bryophyllum stomata are open during the night, and closed during the day time. This is an adaptation of cutting transpirational loss of water. CAM plants are the succulent plant which grow in deserts and are exposed to high temperature of the stomata are open during the night for carbon dioxide uptake but closed during the day to prevent water loss.
271722
In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through :
1 aerenchyma
2 trichomes
3 pneumatophores
4 lenticels
Explanation:
Exp:D Lenticles : In place of cork cells complementary cells are thin walled, Parenchymatous loosely arranged have large intercellular spaces, due to increase of number of complementary cells, epidermis ruptured lens core is formed called lenticles exchange of gases occur.
Haryana PMT-2004
Anatomy of Flowering Plants
271724
Stele comprises consists
1 xylem, phloem and pith
2 endodermis, xylemand phloem
3 vascular tissue, pericycle and pith
4 vascular tissue, endodermis and pith
Explanation:
Exp:C According to concept hypothesis of stele proposed by van Tieghem, the stele consists of vascular tissue, ground tissue or pith and a pericycle. The primary body of root and stem are anatomically same i.e. consist of central stele surrounded by cortex. The stele was oriented in first vascular plant (pteridophytes) and it consist of vascular tissue pericycle and pith pericycle surrounds the stele on the outer side.
Manipal-2013
Anatomy of Flowering Plants
271726
The monocotyledonous seed consists of one large and shield shaped cotyledon known as a/an
1 Coleoptile
2 Scutellum
3 Aleurone layer
4 Coleorhiza
Explanation:
Exp:B Monocotyledonaus seed has embryos that bases only one large cotyledon called scutellum. Generally, the scutellum is shaped like a shield. Its located laterally towards the side of the embryo axis like dicotyledons the embryo axis of monocotyledons process a shoot tip called the plumule.
J and K CET-2015
Anatomy of Flowering Plants
271727
Stomata open at night and close during day time in:
1 succulents
2 xerophytes
3 hydrophytes
4 mesophytes
Explanation:
Exp:A In succulent plants like Cacti and Bryophyllum stomata are open during the night, and closed during the day time. This is an adaptation of cutting transpirational loss of water. CAM plants are the succulent plant which grow in deserts and are exposed to high temperature of the stomata are open during the night for carbon dioxide uptake but closed during the day to prevent water loss.
271722
In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through :
1 aerenchyma
2 trichomes
3 pneumatophores
4 lenticels
Explanation:
Exp:D Lenticles : In place of cork cells complementary cells are thin walled, Parenchymatous loosely arranged have large intercellular spaces, due to increase of number of complementary cells, epidermis ruptured lens core is formed called lenticles exchange of gases occur.
Haryana PMT-2004
Anatomy of Flowering Plants
271724
Stele comprises consists
1 xylem, phloem and pith
2 endodermis, xylemand phloem
3 vascular tissue, pericycle and pith
4 vascular tissue, endodermis and pith
Explanation:
Exp:C According to concept hypothesis of stele proposed by van Tieghem, the stele consists of vascular tissue, ground tissue or pith and a pericycle. The primary body of root and stem are anatomically same i.e. consist of central stele surrounded by cortex. The stele was oriented in first vascular plant (pteridophytes) and it consist of vascular tissue pericycle and pith pericycle surrounds the stele on the outer side.
Manipal-2013
Anatomy of Flowering Plants
271726
The monocotyledonous seed consists of one large and shield shaped cotyledon known as a/an
1 Coleoptile
2 Scutellum
3 Aleurone layer
4 Coleorhiza
Explanation:
Exp:B Monocotyledonaus seed has embryos that bases only one large cotyledon called scutellum. Generally, the scutellum is shaped like a shield. Its located laterally towards the side of the embryo axis like dicotyledons the embryo axis of monocotyledons process a shoot tip called the plumule.
J and K CET-2015
Anatomy of Flowering Plants
271727
Stomata open at night and close during day time in:
1 succulents
2 xerophytes
3 hydrophytes
4 mesophytes
Explanation:
Exp:A In succulent plants like Cacti and Bryophyllum stomata are open during the night, and closed during the day time. This is an adaptation of cutting transpirational loss of water. CAM plants are the succulent plant which grow in deserts and are exposed to high temperature of the stomata are open during the night for carbon dioxide uptake but closed during the day to prevent water loss.
271722
In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through :
1 aerenchyma
2 trichomes
3 pneumatophores
4 lenticels
Explanation:
Exp:D Lenticles : In place of cork cells complementary cells are thin walled, Parenchymatous loosely arranged have large intercellular spaces, due to increase of number of complementary cells, epidermis ruptured lens core is formed called lenticles exchange of gases occur.
Haryana PMT-2004
Anatomy of Flowering Plants
271724
Stele comprises consists
1 xylem, phloem and pith
2 endodermis, xylemand phloem
3 vascular tissue, pericycle and pith
4 vascular tissue, endodermis and pith
Explanation:
Exp:C According to concept hypothesis of stele proposed by van Tieghem, the stele consists of vascular tissue, ground tissue or pith and a pericycle. The primary body of root and stem are anatomically same i.e. consist of central stele surrounded by cortex. The stele was oriented in first vascular plant (pteridophytes) and it consist of vascular tissue pericycle and pith pericycle surrounds the stele on the outer side.
Manipal-2013
Anatomy of Flowering Plants
271726
The monocotyledonous seed consists of one large and shield shaped cotyledon known as a/an
1 Coleoptile
2 Scutellum
3 Aleurone layer
4 Coleorhiza
Explanation:
Exp:B Monocotyledonaus seed has embryos that bases only one large cotyledon called scutellum. Generally, the scutellum is shaped like a shield. Its located laterally towards the side of the embryo axis like dicotyledons the embryo axis of monocotyledons process a shoot tip called the plumule.
J and K CET-2015
Anatomy of Flowering Plants
271727
Stomata open at night and close during day time in:
1 succulents
2 xerophytes
3 hydrophytes
4 mesophytes
Explanation:
Exp:A In succulent plants like Cacti and Bryophyllum stomata are open during the night, and closed during the day time. This is an adaptation of cutting transpirational loss of water. CAM plants are the succulent plant which grow in deserts and are exposed to high temperature of the stomata are open during the night for carbon dioxide uptake but closed during the day to prevent water loss.
