Anatomy of Flowering Plants
- Tracheids differ from other tracheary elements in:
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The walls of vessels (tracheary elements) are lignified and less thicker than tracheids. The lumen is wider. Vessels differ from tracheids in having cell fusions arising through the dissolution of end walls.
Correct Option: B
The walls of vessels (tracheary elements) are lignified and less thicker than tracheids. The lumen is wider. Vessels differ from tracheids in having cell fusions arising through the dissolution of end walls.
- Replum is present in the ovary of flower of
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Replum is present in the ovary of flower of mustard. A false septun called replum develops between the two parietal placentae in mustard and other members of family Brassicaceae. The ovary becomes bilocular.
Correct Option: B
Replum is present in the ovary of flower of mustard. A false septun called replum develops between the two parietal placentae in mustard and other members of family Brassicaceae. The ovary becomes bilocular.
- The type of placentation in which ovary is syncarpous, unilocular and ovules on sutures is called
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The arrangement of ovules inside the ovary of a flowering plant is called placentation. In marginal placentation, the ovule develop from a longitudinal suture where the margins of the ovary wall fuse. e.g.. Pea, gram. In apical placentation a single ovule is born near the apex of the ovary. Here ovary is unilocular (Cannabis). In superficial placentation the ovary is unilocular simple or syncarpous e.g. Nymphaea.
Correct Option: B
The arrangement of ovules inside the ovary of a flowering plant is called placentation. In marginal placentation, the ovule develop from a longitudinal suture where the margins of the ovary wall fuse. e.g.. Pea, gram. In apical placentation a single ovule is born near the apex of the ovary. Here ovary is unilocular (Cannabis). In superficial placentation the ovary is unilocular simple or syncarpous e.g. Nymphaea.
- In a ring girdled plant:
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In a ring girdled plant, roots die first due to damage of phloem causing inhibition of translocation of food.
Correct Option: A
In a ring girdled plant, roots die first due to damage of phloem causing inhibition of translocation of food.
- Axillary bud and terminal bud are derived from the activity of
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Apical meristem is located at the apex of stem, root and branches, and forms axillary and terminal bud. Intercalary meristems take part in linear growth. Lateral meristem occurs parallel to the circumference of the organs. They increase the girth of the plant.
Correct Option: C
Apical meristem is located at the apex of stem, root and branches, and forms axillary and terminal bud. Intercalary meristems take part in linear growth. Lateral meristem occurs parallel to the circumference of the organs. They increase the girth of the plant.