Four coleoptile for experiment Which coleoptile bend toward the light? Choose the correct option |
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Four coleoptile for experiment Which coleoptile bend toward the light? Choose the correct option |
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a) |
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b) |
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c) |
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d) |
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(b) Phototropism is the movement of coleoptile (plant organ) towards the light (due to auxin) Figure 1 shows incomplete blockage of auxin, but direction of blockage does not favour the bending of coleoptile towards the light source Figure 2 shows in complete blockage of auxin movement from apical part to lateral part. So, no bending of coleoptile is there Figure 3 shows incomplete blockage, but the direction favours the bending of coleoptile towards the source Figure 4 shows no blockage hence, the bending of coleoptile takes place easily |