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Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the
agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of
what significance is this experiment?
agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of
what significance is this experiment?
- a)It supports the hypothesis that IAA is auxin
- b)It demonstrated polar movement of auxins
- c)It made possible the isolation and exact identification of auxin
- d)It is the basis for quantitative determination of small amounts of growth-promoting
substances.
Correct answer is option 'B'. Can you explain this answer?
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Dr. F. Went noted that if coleoptile tips were removed and placed on a...
Significance of the Experiment:
The experiment conducted by Dr. F. Went involving the removal of coleoptile tips and placing them on agar for one hour has several significant implications. It provides evidence for the polar movement of auxins, which is the key finding in this experiment.
Demonstration of Polar Movement of Auxins:
The experiment involves placing agar on one side of freshly-cut coleoptile stumps. The agar is derived from coleoptile tips that were removed and placed on agar for one hour. The subsequent bending of the coleoptile stump towards the agar demonstrates the polar movement of auxins.
Explanation:
1. Auxins: Auxins are plant hormones that play a crucial role in controlling plant growth and development. One of the known auxins is Indole-3-acetic acid (IAA).
2. Polar Movement of Auxins: The experiment shows that the agar, which contains auxins derived from the coleoptile tips, induces bending in the coleoptile stump when placed on one side. This bending occurs because auxins move from the agar towards the cut end of the coleoptile stump, stimulating elongation of cells on that side.
3. Direction of Auxin Movement: The experiment demonstrates that auxins move in a polar manner, from the agar towards the cut end of the coleoptile stump. This polar movement of auxins is critical for the directional growth of plants.
4. Supporting the Hypothesis: The experiment provides supporting evidence for the hypothesis that IAA is an auxin. The bending of the coleoptile stump towards the agar indicates that the agar contains auxins, which are responsible for the observed growth response.
5. Isolation and Identification of Auxin: Although the experiment does not directly isolate or identify auxin, it indirectly suggests the presence of auxins in the agar. Further experiments and techniques would be required for the isolation and exact identification of auxins.
In conclusion, the experiment conducted by Dr. F. Went is significant because it demonstrates the polar movement of auxins. It provides supporting evidence for the hypothesis that IAA is an auxin and highlights the importance of auxins in plant growth and development. While it does not directly isolate or identify auxin, it lays the foundation for further research in the quantitative determination of growth-promoting substances.
The experiment conducted by Dr. F. Went involving the removal of coleoptile tips and placing them on agar for one hour has several significant implications. It provides evidence for the polar movement of auxins, which is the key finding in this experiment.
Demonstration of Polar Movement of Auxins:
The experiment involves placing agar on one side of freshly-cut coleoptile stumps. The agar is derived from coleoptile tips that were removed and placed on agar for one hour. The subsequent bending of the coleoptile stump towards the agar demonstrates the polar movement of auxins.
Explanation:
1. Auxins: Auxins are plant hormones that play a crucial role in controlling plant growth and development. One of the known auxins is Indole-3-acetic acid (IAA).
2. Polar Movement of Auxins: The experiment shows that the agar, which contains auxins derived from the coleoptile tips, induces bending in the coleoptile stump when placed on one side. This bending occurs because auxins move from the agar towards the cut end of the coleoptile stump, stimulating elongation of cells on that side.
3. Direction of Auxin Movement: The experiment demonstrates that auxins move in a polar manner, from the agar towards the cut end of the coleoptile stump. This polar movement of auxins is critical for the directional growth of plants.
4. Supporting the Hypothesis: The experiment provides supporting evidence for the hypothesis that IAA is an auxin. The bending of the coleoptile stump towards the agar indicates that the agar contains auxins, which are responsible for the observed growth response.
5. Isolation and Identification of Auxin: Although the experiment does not directly isolate or identify auxin, it indirectly suggests the presence of auxins in the agar. Further experiments and techniques would be required for the isolation and exact identification of auxins.
In conclusion, the experiment conducted by Dr. F. Went is significant because it demonstrates the polar movement of auxins. It provides supporting evidence for the hypothesis that IAA is an auxin and highlights the importance of auxins in plant growth and development. While it does not directly isolate or identify auxin, it lays the foundation for further research in the quantitative determination of growth-promoting substances.
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Dr. F. Went noted that if coleoptile tips were removed and placed on a...
Yes correct answer is B as auxin also react with respect to light.
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Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer?
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Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer?.
Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer?.
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Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, theagar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Ofwhat significance is this experiment?a)It supports the hypothesis that IAA is auxinb)It demonstrated polar movement of auxinsc)It made possible the isolation and exact identification of auxind)It is the basis for quantitative determination of small amounts of growth-promotingsubstances.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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