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Ovules are present in
Option: 1
Placenta
Option: 2
Locules
Option: 3
Both a and b
Option: 4
None of these
Answers (1)
Parts of a Flower - Gynoecium
- Gynoecium is the female reproductive whorl of the flower.
- It is made up of one or more carpels/pistils/megasporophyll.
- A carpel consists of stigma, style and ovary.
- Ovary is the enlarged basal part on which the elongated tube called style is present.
- The style connects the ovary to the stigma.
- The stigma present at the tip is receptive surface for the pollen grains.
- Ovary contains one or more ovules attached to a flattened cushion-like placenta.
- When more than one one carpels are present and they are free, the condition is called apocarpous, e.g., lotus and rose.
- When more than one carpels are present and they are fused, the condition is called syncarpous, e.g., mustard and tomato.
- Monocarpellary : It is a gynoecium with a single carpel, e.g., Bean.
- Bicarpellary : It is the presence of two carpels in a gynoecium. e.g., Helianthus.
- Tricarpellary : It is the presence of three carpels in a gynoecium e.g., Cocos.
- Tetracarpellary : It is the presence of four carpels in a gynoecium. e.g., Cotton.
- Pentacarpellary : It is the presence of five carpels in a gynoecium. e.g., Hibiscus.
- Multicarpellary : It is the presence of many carpels in a gynoecium. e.g., Annona.
Locules in the Ovary:
- The ovary encloses one to many chambers called the locules. Based on the number of locules, the ovary may be described as follows :
- Unilocular : Ovary with one locule. e.g., Dolichos.
- Bilocular : Ovary with two locules. e.g., Solanum.
- Trilocular : Ovary with three locules. e.g., Allium.
- Tetralocular : Ovary with four locules. e.g., Datura.
- Pentalocular : Ovary with five locules. e.g., Hibiscus.
- Multilocular : Ovary with many locules. e.g., Abutilon.
Ovules are present in the locules of ovary.
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