In Angiosperms pollen tube liberate their male gametes into the :

Options

A. Central cell
B. Antipodal cells
C. Egg cell
D. Synergid

Answer

### Step-by-Step Solution:

1. **Understanding the Pollen Tube Function**: In angiosperms, the pollen tube is a structure that grows from the pollen grain after pollination. Its primary function is to transport male gametes (sperm cells) to the ovule for fertilization.

2. **Identifying the Target Cells**: The pollen tube reaches the ovule, where it encounters different types of cells: the synergids, egg cell, central cell, and antipodal cells.

3. **Role of Synergids**: The synergids are two specialized cells located near the egg cell within the ovule. They play a crucial role in guiding the pollen tube to the egg cell.

4. **Release of Male Gametes**: When the pollen tube reaches the ovule, it releases its contents, which include two male gametes. The first male gamete is transferred to the egg cell, leading to the formation of the zygote.

5. **Second Male Gamete**: The second male gamete moves towards the central cell, where it participates in the formation of the endosperm, which nourishes the developing embryo.

6. **Conclusion**: The question specifically asks where the pollen tube liberates its male gametes. The correct answer is that the pollen tube liberates its contents into the synergids.

### Final Answer:
The pollen tube liberates its male gametes into the **synergids**.

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