Pollen tube discharges its male gametes into

Options

A. Egg
B. Healthy synergid
C. Degenerating synergid
D. Central cell.

Answer

**Step-by-Step Solution:**

1. **Understanding Pollen Tube Function**: The pollen tube is a structure that forms after a pollen grain lands on a compatible stigma. Its primary function is to transport male gametes (sperm cells) to the ovule for fertilization.

2. **Identifying Target Cells**: The pollen tube grows through the style and reaches the ovule, where it must discharge its contents. The target cells for the male gametes are located within the ovule.

3. **Synergids Role**: Within the ovule, there are two synergid cells that are located near the egg cell. These synergids play a crucial role in guiding the pollen tube to the egg cell.

4. **Discharge of Male Gametes**: When the pollen tube reaches the ovule, it discharges its contents, including the male gametes, into the cytoplasm of the synergid cells.

5. **Degeneration of Synergids**: After the discharge, the synergids typically degenerate, which facilitates the process of fertilization by allowing the male gametes to reach the egg cell.

6. **Conclusion**: From the options provided, the correct answer is that the pollen tube discharges its male gametes into the "degenerating synergid."

**Final Answer**: The pollen tube discharges its male gametes into the degenerating synergid.

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