The coconut water from tender coconut represents

Options

A. Endocarp
B. Cellular endosperm
C. Free nuclear proembryo
D. Free nuclear endosperm

Answer

To solve the question "The coconut water from tender coconut represents," we need to understand the process of double fertilization in angiosperms and the role of endosperm.

### Step-by-Step Solution:

1. **Understanding Double Fertilization**:
- In angiosperms, double fertilization occurs when one male gamete fertilizes the egg cell to form the zygote, while the other male gamete fuses with two polar nuclei to form the primary endosperm nucleus (PEN).

**Hint**: Recall that double fertilization is a unique process in angiosperms involving two fertilization events.

2. **Formation of Primary Endosperm Nucleus (PEN)**:
- The PEN undergoes nuclear division without cytokinesis, resulting in many nuclei within a single cell. This condition is known as a "free nuclear condition."

**Hint**: Focus on how the PEN develops and the significance of nuclear division without cell wall formation.

3. **Coconut Water as Free Nuclear Endosperm**:
- The coconut water found in tender coconuts is essentially this free nuclear endosperm, which contains numerous nuclei suspended in a liquid.

**Hint**: Remember that the coconut water is not yet cellularized; it is still in the free nuclear state.

4. **Cellular Endosperm Formation**:
- Eventually, cell wall synthesis occurs, converting the free nuclear endosperm into cellular endosperm. The white part of the coconut (the kernel) represents this cellular endosperm.

**Hint**: Distinguish between free nuclear endosperm (coconut water) and cellular endosperm (the white kernel).

5. **Conclusion**:
- Therefore, the correct representation of coconut water from tender coconut is the free nuclear endosperm.

**Final Answer**: The coconut water from tender coconut represents the **free nuclear endosperm**.