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A type of placentation in which an axis ...

A type of placentation in which an axis is formed in the centre of ovary and ovary become multichambered –

A

Free central

B

Marginal

C

Axile

D

Parietal

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question regarding the type of placentation in which an axis is formed in the center of the ovary and the ovary becomes multichambered, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Placentation**: Placentation refers to the arrangement of ovules within the ovary of a flower. Different types of placentation are characterized by how and where the ovules are attached. 2. **Identifying the Key Features**: The question specifies that there is an "axis formed in the center of the ovary" and that the "ovary becomes multichambered." This means we are looking for a type of placentation that allows for multiple chambers within the ovary. 3. **Exploring the Options**: - **Option A: Free Central**: In free central placentation, ovules are attached to a central column (axis) within a single chamber. This type is found in plants like Primrose (Primulaceae). - **Option B: Marginal**: In marginal placentation, ovules are arranged along a ridge on one side of the ovary. This is seen in plants from the Fabaceae family. - **Option C: Axile**: In axile placentation, the ovary is divided into multiple chambers (locules) by septa, and ovules are attached to the central axis. This is the type we are looking for. - **Option D: Parietal**: In parietal placentation, ovules are attached to the inner wall of the ovary and it is typically unilocular. 4. **Conclusion**: Based on the definitions and characteristics of each type of placentation, the correct answer to the question is **Axile placentation**. This type allows for the formation of multiple chambers in the ovary with an axis in the center. ### Final Answer: **Axile placentation** is the type of placentation in which an axis is formed in the center of the ovary and the ovary becomes multichambered. ---
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