Which placentation type features ovules on the central axis with the ovary divided into three locules?

Which placentation type features ovules on the central axis with the ovary divided into three locules?

• A. Marginal Placentation
• B. Placentation
• C. Axile Placentation
• D. Apocarpous

Answer: (C)

Placentation describes how ovules are attached inside the ovary and how many compartments (locules) the ovary has. When the ovules are borne on a central axis inside a trilocular ovary, the placenta forming that axis is central, and the septa divide the ovary into three compartments. This arrangement is exactly what axile placentation describes: ovules on a central axis with a central placental tissue, in an ovary divided into locules. It’s commonly seen in many plants such as tomatoes, where the three chambers share a central placenta bearing the ovules. Marginal placentation would have ovules along the margin of a single carpel, and apocarpous refers to multiple carpels that are separate rather than fused into a single ovary, while the term placentation alone doesn’t specify locule arrangement.

Placentation describes how ovules are attached inside the ovary and how many compartments (locules) the ovary has. When the ovules are borne on a central axis inside a trilocular ovary, the placenta forming that axis is central, and the septa divide the ovary into three compartments. This arrangement is exactly what axile placentation describes: ovules on a central axis with a central placental tissue, in an ovary divided into locules. It’s commonly seen in many plants such as tomatoes, where the three chambers share a central placenta bearing the ovules.

Marginal placentation would have ovules along the margin of a single carpel, and apocarpous refers to multiple carpels that are separate rather than fused into a single ovary, while the term placentation alone doesn’t specify locule arrangement.