The symplast comprises network of cytoplasm of cells interconnected by

Options

A. Plasmodesmata
B. Endoplasmic reticulum
C. Suberin
D. Vacuoles

Answer

**Step-by-Step Solution:**

1. **Understanding the Symplast:**
- The symplast refers to the interconnected network of cytoplasm in plant cells. It plays a crucial role in the transport of water, nutrients, and other substances between cells.

2. **Identifying the Interconnections:**
- The cells in plants are separated by cell walls, which can make direct transport of substances challenging. Therefore, there must be a system that connects the cytoplasm of adjacent cells.

3. **Exploring the Options:**
- The options given are:
a. Plasmodesmata
b. Endoplasmic reticulum
c. Submarine and the impeccules
- We need to determine which of these structures is responsible for connecting the cytoplasm of plant cells.

4. **Analyzing Plasmodesmata:**
- Plasmodesmata are small channels that traverse the cell walls, allowing for direct communication and transport between the cytoplasm of neighboring cells. They facilitate the movement of water, ions, and small molecules.

5. **Considering Other Options:**
- The endoplasmic reticulum is an organelle within a single cell and does not connect different cells.
- The term "submarine and the impeccules" does not relate to plant cell structure and is likely a distractor.

6. **Conclusion:**
- Based on the definition and function of plasmodesmata, we conclude that they are indeed the structures that form the network of cytoplasm connections in the symplast.

7. **Final Answer:**
- The symplast comprises a network of cytoplasm of cells interconnected by **plasmodesmata** (Option A).

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