Terms apoplast and symplast were first used by

Options

A. Munch
B. Clark
C. Fisher
D. Dixon.

Answer

**Step-by-Step Solution:**

1. **Identify the Terms**: The terms "apoplast" and "symplast" are related to the pathways of water and solute movement in plants.

2. **Historical Context**: The question asks about the first use of these terms. Understanding the historical context is important.

3. **Research the Origin**:
- Eduard Tangl discovered the simplistic pathway in 1879.
- The term "simplast" was coined by Hanstein in 1880.
- The term "apoplast" was coined by Munch in 1930.

4. **Connecting the Terms**: Munch is notable for using both terms "apoplast" and "symplast" together to differentiate between the two pathways in plant physiology.

5. **Conclusion**: Based on the historical information, Munch was the first to use the terms "apoplast" and "symplast" together.

6. **Final Answer**: Therefore, the correct answer to the question is Munch.

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