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Question
In which one of the following placentations, the ovary is one-chambered but becomes two-chambered due to the formation of the false septum.
In which one of the following placentations, the ovary is one-chambered but becomes two-chambered due to the formation of the false septum.
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Solution
The correct option is A Argemone
The arrangement of ovules within the ovary is known as placentation. The types of placentation seen are a) marginal, b) axile, c) parietal, d) basal, e) free central.
Pea shows marginal placentation; the placenta forms a ridge along the suture of the ovary, ventrally and the ovules are present along the ridge forming two rows.
Argemone and mustard have parietal placentation, where the ovules develop on the inner wall of the ovary or peripherally. The ovary is one-chambered but it becomes two-chambered due to the formation of the false septum.
Primrose and Dianthus have free central placentation where the ovules are borne on the central axis and septa are absent.
The arrangement of ovules within the ovary is known as placentation. The types of placentation seen are a) marginal, b) axile, c) parietal, d) basal, e) free central.
Pea shows marginal placentation; the placenta forms a ridge along the suture of the ovary, ventrally and the ovules are present along the ridge forming two rows.
Argemone and mustard have parietal placentation, where the ovules develop on the inner wall of the ovary or peripherally. The ovary is one-chambered but it becomes two-chambered due to the formation of the false septum.
Primrose and Dianthus have free central placentation where the ovules are borne on the central axis and septa are absent.
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