The (A)_____ system is the sytem of interconnected protoplasts. Neighbouring cells are connected through cytoplasmic strands that extend through (B)____

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for two terms related to the system of interconnected protoplasts in plant cells. The first blank (A) refers to the system itself, while the second blank (B) refers to the structures that connect neighboring cells.

2. **Identifying the System**: The system of interconnected protoplasts is known as the **symplastic system**. This system allows for the movement of water, nutrients, and signaling molecules between cells through their protoplasts.

3. **Understanding Protoplasts**: Protoplasts are the living parts of the cell, which include the cytoplasm and the nucleus. In plants, protoplasts are interconnected through specialized structures.

4. **Identifying the Connecting Structures**: The neighboring cells are connected through cytoplasmic strands that extend through **plasmodesmata**. Plasmodesmata are microscopic channels that traverse the cell walls of plant cells, allowing for communication and transport between adjacent cells.

5. **Filling in the Blanks**: Based on the above understanding, we can fill in the blanks:
- (A) **symplastic system**
- (B) **plasmodesmata**

**Final Answer**: The symplastic system is the system of interconnected protoplasts. Neighboring cells are connected through cytoplasmic strands that extend through plasmodesmata.

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