Who proved that living cells are not involved in ascent of sap

Options

A. Sachs
B. Boucherie
C. Strasburger
D. Both B and C

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks who proved that living cells are not involved in the ascent of sap in plants.

2. **Identifying Key Researchers**: The researchers mentioned in the video transcript are Strasburger and Overton. They are significant figures in plant physiology.

3. **Experimental Method**: Overton and Strasburger conducted experiments where they used poisons and excessive heat to kill the living tissues of plants that are responsible for the conduction of sap.

4. **Observations**: After applying these treatments, they observed that the movement of water (ascent of sap) continued uninterrupted, indicating that the living cells were not necessary for this process.

5. **Conclusion**: Their findings led to the conclusion that living cells are not involved in the ascent of sap, thus proving that the ascent of sap can occur independently of living cells.

6. **Final Answer**: Based on the experiments conducted by Strasburger and Overton, the correct answer to the question is that they proved living cells are not involved in the ascent of sap.

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