Seed Germination: Root Formation

Seed germination is the process where a plant embryo within a seed emerges and begins to grow into a seedling. This process relies on the development of key embryonic structures.

Key Parts of Seed Germination

• Radicle: This is the embryonic root of the plant. It is the first part of the seedling to emerge from the seed during germination. Its primary function is to anchor the seedling in the soil and absorb water and nutrients.
• Plumule: This embryonic shoot develops into the leaves and stem of the plant.
• Epicotyl: Part of the plumule, it forms the shoot above the cotyledons.
• Cotyledon: Seed leaves that often store food or help absorb food from the endosperm for the growing embryo.

Identifying the Root-Forming Part

During germination, the radicle grows downward into the soil, establishing the primary root system. Therefore, the radicle is the specific part of the seed that forms the root upon germination.

The correct option is the one that identifies the radicle.