Auxins were isolated by

Options

A. F. Skoog
B. E. Kurosawa
C. Miller
D. F.W.Went

Answer

**Step-by-Step Solution:**

1. **Identify the Scientists Involved**: The question asks about the isolation of auxins, which were studied by several scientists, including F. W. Wendt, F. Skog, E. Kurasawa, and Miller.

2. **Focus on F.W. Wendt**: Among the mentioned scientists, F.W. Wendt is particularly noted for his work with auxins. He conducted experiments that demonstrated the role of auxins in plant growth.

3. **Describe the Experiment**: Wendt's significant experiment involved cutting the tip of the coleoptile of the plant species *Avena* (oat). He observed that cutting the tip halted the elongation of the plant.

4. **Introduce Auxin**: Wendt found that when auxin was applied externally to the cut coleoptile, the growth resumed. This led him to conclude that auxins are synthesized in the coleoptile tip.

5. **Explain the Mechanism**: Auxins are responsible for cell elongation. When light is directed towards one side of the plant, auxins accumulate on the shaded side, causing that side to grow more and resulting in the bending of the plant towards the light source.

6. **Conclude with the Correct Scientist**: Therefore, the scientist credited with isolating auxins is F.W. Wendt.

**Final Answer**: Auxins were isolated by F.W. Wendt.

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