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Questions and Answers
Which plant hormone is primarily involved in the stimulation of adventitious roots?
Which plant hormone is primarily involved in the stimulation of adventitious roots?
Which plant hormone is associated with increasing the size and sugar content of grapes?
Which plant hormone is associated with increasing the size and sugar content of grapes?
What type of tropism is demonstrated when plant roots grow downward in response to gravity?
What type of tropism is demonstrated when plant roots grow downward in response to gravity?
Which statement is true regarding auxin concentrations and their effect on axillary buds?
Which statement is true regarding auxin concentrations and their effect on axillary buds?
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Which plant hormone is known to promote cell division and growth?
Which plant hormone is known to promote cell division and growth?
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What is the primary mechanism behind positive phototropism in plants?
What is the primary mechanism behind positive phototropism in plants?
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Which hormone is NOT primarily linked to root development?
Which hormone is NOT primarily linked to root development?
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Which mechanism explains the downward growth of roots in response to gravity?
Which mechanism explains the downward growth of roots in response to gravity?
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What is the primary role of auxin in plants?
What is the primary role of auxin in plants?
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Which type of plant movement is described as the growth of a plant in response to touch?
Which type of plant movement is described as the growth of a plant in response to touch?
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What effect do cytokinins have on plant growth?
What effect do cytokinins have on plant growth?
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What is the function of gibberellins in plants?
What is the function of gibberellins in plants?
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Which of these statements best describes phototropism?
Which of these statements best describes phototropism?
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What is the effect of photoperiodism on flowering in plants?
What is the effect of photoperiodism on flowering in plants?
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Which of the following is a precursor of auxin?
Which of the following is a precursor of auxin?
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How does Taxis differ from Tropisms?
How does Taxis differ from Tropisms?
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What role does auxin play in the bending of shoots towards light?
What role does auxin play in the bending of shoots towards light?
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Which plant hormone is primarily responsible for fruit ripening?
Which plant hormone is primarily responsible for fruit ripening?
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In the context of phototropism, what causes the shoot apical meristem to bend?
In the context of phototropism, what causes the shoot apical meristem to bend?
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Which type of tropism is demonstrated when a plant grows towards light?
Which type of tropism is demonstrated when a plant grows towards light?
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What is the primary function of gibberellins in plant development?
What is the primary function of gibberellins in plant development?
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Which statement accurately describes the roles of cytokinin and auxin?
Which statement accurately describes the roles of cytokinin and auxin?
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What physiological response is described by photoperiodism?
What physiological response is described by photoperiodism?
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Which plant growth regulator is involved in the natural production of seedless fruit?
Which plant growth regulator is involved in the natural production of seedless fruit?
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Study Notes
Plant Physiology Test 3
- Test Details: Test 3, 2024-1, taken November 21, 2024, 11:33 AM - 12:57 PM. Duration: 1 hour, 23 minutes.
- Grade: 76.00 out of 100.00; Marks: 38.00/50.00
- Questions Covered: Multiple choice questions covering plant hormones, tropisms, and other plant processes.
Question 1
- Hormone for Adventitious Roots: Auxin
Question 2
- Plant Hormone for Grape Juice Production (Partially Correct): Auxin and Gibberellin.
Question 3
- Type of Tropism in Diagram: Positive geotropism
Question 4
- Auxin Concentration and Axillary Buds: High auxin concentration promotes axillary bud development, while low concentration inhibits axillary bud growth in coleus plant.
Question 5
- Epidermal Tissue Bending in Shoots: Auxin causes cell elongation in the shoot apical meristem. In phototropism, light causes auxin to accumulate on the shaded side, triggering increased cell elongation, and causing the shoot to bend towards the light. This process occurs in the ground tissue layer.
Question 6
- Shoot Apical Meristem and Bending: The shoot apical meristem isn't responsible for the bending due to cell elongation, which happens in the ground tissue layer during phototropism. (False)
Question 7
- Hormone for Fruit Ready for Pastry: Ethylene
Question 8
- Auxin and Cytokinin Concentration: Auxin promotes root formation, while cytokinin promotes shoot formation
Question 9
- Tropism in Diagram: Positive geotropism
Question 10
- Gibberellin and Fruit Ripening: (False). Gibberellin doesn't promote fruit ripening.
Question 11
- Photoperiodism: Is the plant's response to changes in the length of the night, impacting flowering in long-day and short-day plants.
- Parthenocarpy: Development of fruit without fertilization.
- Tropism in Video: Thigmotropism
Question 12
- Cytokinins and Cell Division: Cytokinins promote cell division. (True)
Question 13
- Multicellular Swelling at Leaf Base: Pulvini
Question 14
- Plant Hormone for Root Development: Auxin
Question 15
- Auxin Precursors: Indole-ethanol, indoleacetaldehyde, and indoleacetonitrile are auxin precursors. (True)
Question 16
- Plant Movement in Response to Stimulus: Taxis
Question 17
- Hormone for Germination and Dormant Bud Growth: Gibberellins
Question 18
- Molecules Not Contributing to Guard Cell Flaccidity: PO4 (Phosphate)
Question 19
- Phytochromes and Red Light: Phytochromes are photo-receptors that receive red light. (True)
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Description
This quiz assesses your knowledge in plant physiology with a focus on plant hormones, tropisms, and various plant processes. It covers key concepts such as auxin effects and the mechanisms behind positive geotropism. Test your understanding of how these factors influence plant growth.
