Question

define placentation and define it's types​

Answer 1

Placentation is the arrangement of ovules in the ovary of a plant. The given diagram shows the types of placentation such as basal, apical, parietal, marginal, axial and free central. Marginal : One elongated palcenta is located on one side of ovary. Ovules are attached at the line of carpel's margin e.g., Legumes.

Explanation:

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Answer 2

Answer:

Placentation is the arrangement of ovules in the ovary of a plant. The given diagram shows the types of placentation such as basal, apical, parietal, marginal, axial and free central.

Marginal : One elongated palcenta is located on one side of ovary. Ovules are attached at the line of carpel's margin e.g., Legumes.

Axil : Carpels are folded inward with ovules placed along the central axis of ovary e.g., tomato.

Parietal : Ovules develop on the inner wall of the ovary e.g., Popy.

Free-central : Ovule develop on the central axis while the septa is absent e.g., Dianthus.

Basal : The ovules are arranged at the base of the ovary e.g., sunflowe.

Superficial : Ovules are attached entirely to the inner surface of the ovary e.g. Nymphea

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