338212
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 coleoptiles stumps. Of what significance is this experiment?
1 It is made possible the isolation and exact identification of auxin
2 It is the basis for quantitative determination of small amounts of growth promoting substances.
3 It supports the hypothesis that IAA is auxin.
4 It demonstrates polar movement of auxins.
Explanation:
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 coleoptiles stumps. This experiment signifies that it is made possible that isolation and identification of exact identification of auxin. Dr F. Went isolated Auxin from Avena coleoptile tip. His experiment demonstrated the polar movement of auxins. Tryptophan is the precursor of Indole acetic acid (IAA, natural auxin). Important biassay of auxins are Avena curvature test and cross root inhibition test.
AIPMT - 2014
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338213
Phototropic curvature is the result of uneven distribution of
1 Gibberellins
2 Phytochrome
3 Cytokinin
4 Auxin
Explanation:
Phototropic curvature is the result of uneven distribution of auxin. Charles Darwin and Francis Darwin observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards source of light. After many trials they concluded that auxin was responsible for bending of coleoptiles.
AIPMT - 2010
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338214
When a green plant is exposed to light on only one side, bends towards the source of light as it grows. What is the possible reason for this
1 Green plants are phototropic
2 Such an event never occurs
3 Auxin causes the following
4 Green plants need light to perform photosynthesis
Explanation:
When a green plant is exposed to light on only one side, plant bends towards the source of light as it grows. The possible reason for this is auxin causes following.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338215
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show
1 The direction of wind
2 The direction of light
3 The direction of growth of leaves
4 None of the above
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338216
Statement A : Skoog and Miller, identified and crystallised the cytokinesis promoting active substance that they termed keratin. Statement B : Cousins confirmed the release of a non-volatile substance from ripened oranges.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Skoog and Miller, later identified and crystallised the cytokinesis promoting active substance that they termed kinetin. Cousins confirmed the release of a volatile substance from ripened oranges.
338212
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 coleoptiles stumps. Of what significance is this experiment?
1 It is made possible the isolation and exact identification of auxin
2 It is the basis for quantitative determination of small amounts of growth promoting substances.
3 It supports the hypothesis that IAA is auxin.
4 It demonstrates polar movement of auxins.
Explanation:
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 coleoptiles stumps. This experiment signifies that it is made possible that isolation and identification of exact identification of auxin. Dr F. Went isolated Auxin from Avena coleoptile tip. His experiment demonstrated the polar movement of auxins. Tryptophan is the precursor of Indole acetic acid (IAA, natural auxin). Important biassay of auxins are Avena curvature test and cross root inhibition test.
AIPMT - 2014
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338213
Phototropic curvature is the result of uneven distribution of
1 Gibberellins
2 Phytochrome
3 Cytokinin
4 Auxin
Explanation:
Phototropic curvature is the result of uneven distribution of auxin. Charles Darwin and Francis Darwin observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards source of light. After many trials they concluded that auxin was responsible for bending of coleoptiles.
AIPMT - 2010
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338214
When a green plant is exposed to light on only one side, bends towards the source of light as it grows. What is the possible reason for this
1 Green plants are phototropic
2 Such an event never occurs
3 Auxin causes the following
4 Green plants need light to perform photosynthesis
Explanation:
When a green plant is exposed to light on only one side, plant bends towards the source of light as it grows. The possible reason for this is auxin causes following.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338215
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show
1 The direction of wind
2 The direction of light
3 The direction of growth of leaves
4 None of the above
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338216
Statement A : Skoog and Miller, identified and crystallised the cytokinesis promoting active substance that they termed keratin. Statement B : Cousins confirmed the release of a non-volatile substance from ripened oranges.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Skoog and Miller, later identified and crystallised the cytokinesis promoting active substance that they termed kinetin. Cousins confirmed the release of a volatile substance from ripened oranges.
338212
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 coleoptiles stumps. Of what significance is this experiment?
1 It is made possible the isolation and exact identification of auxin
2 It is the basis for quantitative determination of small amounts of growth promoting substances.
3 It supports the hypothesis that IAA is auxin.
4 It demonstrates polar movement of auxins.
Explanation:
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 coleoptiles stumps. This experiment signifies that it is made possible that isolation and identification of exact identification of auxin. Dr F. Went isolated Auxin from Avena coleoptile tip. His experiment demonstrated the polar movement of auxins. Tryptophan is the precursor of Indole acetic acid (IAA, natural auxin). Important biassay of auxins are Avena curvature test and cross root inhibition test.
AIPMT - 2014
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338213
Phototropic curvature is the result of uneven distribution of
1 Gibberellins
2 Phytochrome
3 Cytokinin
4 Auxin
Explanation:
Phototropic curvature is the result of uneven distribution of auxin. Charles Darwin and Francis Darwin observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards source of light. After many trials they concluded that auxin was responsible for bending of coleoptiles.
AIPMT - 2010
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338214
When a green plant is exposed to light on only one side, bends towards the source of light as it grows. What is the possible reason for this
1 Green plants are phototropic
2 Such an event never occurs
3 Auxin causes the following
4 Green plants need light to perform photosynthesis
Explanation:
When a green plant is exposed to light on only one side, plant bends towards the source of light as it grows. The possible reason for this is auxin causes following.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338215
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show
1 The direction of wind
2 The direction of light
3 The direction of growth of leaves
4 None of the above
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338216
Statement A : Skoog and Miller, identified and crystallised the cytokinesis promoting active substance that they termed keratin. Statement B : Cousins confirmed the release of a non-volatile substance from ripened oranges.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Skoog and Miller, later identified and crystallised the cytokinesis promoting active substance that they termed kinetin. Cousins confirmed the release of a volatile substance from ripened oranges.
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BIOXI15: PLANT GROWTH AND DEVELOPMENT
338212
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 coleoptiles stumps. Of what significance is this experiment?
1 It is made possible the isolation and exact identification of auxin
2 It is the basis for quantitative determination of small amounts of growth promoting substances.
3 It supports the hypothesis that IAA is auxin.
4 It demonstrates polar movement of auxins.
Explanation:
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 coleoptiles stumps. This experiment signifies that it is made possible that isolation and identification of exact identification of auxin. Dr F. Went isolated Auxin from Avena coleoptile tip. His experiment demonstrated the polar movement of auxins. Tryptophan is the precursor of Indole acetic acid (IAA, natural auxin). Important biassay of auxins are Avena curvature test and cross root inhibition test.
AIPMT - 2014
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338213
Phototropic curvature is the result of uneven distribution of
1 Gibberellins
2 Phytochrome
3 Cytokinin
4 Auxin
Explanation:
Phototropic curvature is the result of uneven distribution of auxin. Charles Darwin and Francis Darwin observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards source of light. After many trials they concluded that auxin was responsible for bending of coleoptiles.
AIPMT - 2010
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338214
When a green plant is exposed to light on only one side, bends towards the source of light as it grows. What is the possible reason for this
1 Green plants are phototropic
2 Such an event never occurs
3 Auxin causes the following
4 Green plants need light to perform photosynthesis
Explanation:
When a green plant is exposed to light on only one side, plant bends towards the source of light as it grows. The possible reason for this is auxin causes following.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338215
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show
1 The direction of wind
2 The direction of light
3 The direction of growth of leaves
4 None of the above
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338216
Statement A : Skoog and Miller, identified and crystallised the cytokinesis promoting active substance that they termed keratin. Statement B : Cousins confirmed the release of a non-volatile substance from ripened oranges.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Skoog and Miller, later identified and crystallised the cytokinesis promoting active substance that they termed kinetin. Cousins confirmed the release of a volatile substance from ripened oranges.
338212
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 coleoptiles stumps. Of what significance is this experiment?
1 It is made possible the isolation and exact identification of auxin
2 It is the basis for quantitative determination of small amounts of growth promoting substances.
3 It supports the hypothesis that IAA is auxin.
4 It demonstrates polar movement of auxins.
Explanation:
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 coleoptiles stumps. This experiment signifies that it is made possible that isolation and identification of exact identification of auxin. Dr F. Went isolated Auxin from Avena coleoptile tip. His experiment demonstrated the polar movement of auxins. Tryptophan is the precursor of Indole acetic acid (IAA, natural auxin). Important biassay of auxins are Avena curvature test and cross root inhibition test.
AIPMT - 2014
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338213
Phototropic curvature is the result of uneven distribution of
1 Gibberellins
2 Phytochrome
3 Cytokinin
4 Auxin
Explanation:
Phototropic curvature is the result of uneven distribution of auxin. Charles Darwin and Francis Darwin observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards source of light. After many trials they concluded that auxin was responsible for bending of coleoptiles.
AIPMT - 2010
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338214
When a green plant is exposed to light on only one side, bends towards the source of light as it grows. What is the possible reason for this
1 Green plants are phototropic
2 Such an event never occurs
3 Auxin causes the following
4 Green plants need light to perform photosynthesis
Explanation:
When a green plant is exposed to light on only one side, plant bends towards the source of light as it grows. The possible reason for this is auxin causes following.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338215
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show
1 The direction of wind
2 The direction of light
3 The direction of growth of leaves
4 None of the above
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338216
Statement A : Skoog and Miller, identified and crystallised the cytokinesis promoting active substance that they termed keratin. Statement B : Cousins confirmed the release of a non-volatile substance from ripened oranges.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Skoog and Miller, later identified and crystallised the cytokinesis promoting active substance that they termed kinetin. Cousins confirmed the release of a volatile substance from ripened oranges.
