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Questions and Answers
Which of the following is a synthetic analogue of phyto-hormones?
Which of the following is a synthetic analogue of phyto-hormones?
What is the role of Nitric oxide in plant growth?
What is the role of Nitric oxide in plant growth?
How do plant hormones act?
How do plant hormones act?
What are the characteristics of Animal Hormones (AH) compared to Plant Hormones (PH)?
What are the characteristics of Animal Hormones (AH) compared to Plant Hormones (PH)?
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Which hormones are decentralized in their regulation?
Which hormones are decentralized in their regulation?
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Which of the following hormones is a synthetic analogue of phyto-hormones?
Which of the following hormones is a synthetic analogue of phyto-hormones?
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Which hormone is involved in many plant processes initiation?
Which hormone is involved in many plant processes initiation?
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In the regulation of which hormones is the effect dependent on the interaction of other hormones?
In the regulation of which hormones is the effect dependent on the interaction of other hormones?
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Which type of hormones are mostly large molecules such as peptides & proteins?
Which type of hormones are mostly large molecules such as peptides & proteins?
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Which hormones are synthesized either throughout the plant body or in specific locations?
Which hormones are synthesized either throughout the plant body or in specific locations?
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Which hormone is not a synthetic analogue of phyto-hormones?
Which hormone is not a synthetic analogue of phyto-hormones?
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In the regulation of which hormones is the effect dependent on the interaction of other hormones?
In the regulation of which hormones is the effect dependent on the interaction of other hormones?
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Which type of hormones are mostly large molecules such as peptides & proteins?
Which type of hormones are mostly large molecules such as peptides & proteins?
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Which hormone acts at a distance but certain times has localized targets?
Which hormone acts at a distance but certain times has localized targets?
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Which hormone is involved in the response of plants to stress situations?
Which hormone is involved in the response of plants to stress situations?
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Which of the following is an example of a non-synthetic growth regulator mentioned in the text?
Which of the following is an example of a non-synthetic growth regulator mentioned in the text?
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What is the role of Jasmonates in plant growth, as per the text?
What is the role of Jasmonates in plant growth, as per the text?
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How do plant hormones differ from animal hormones, based on the text?
How do plant hormones differ from animal hormones, based on the text?
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In the context of plant growth, what is the sequence of events in response to a stimulus, as per the text?
In the context of plant growth, what is the sequence of events in response to a stimulus, as per the text?
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What is the decentralized regulation of plant hormones referred to in the text?
What is the decentralized regulation of plant hormones referred to in the text?
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Study Notes
Synthetic Analogues of Phyto-Hormones
- Synthetic analogues imitate natural plant hormones, enhancing growth and development.
- An example of a synthetic analogue is a growth regulator that promotes cell division.
Role of Nitric Oxide in Plant Growth
- Nitric oxide functions as a signaling molecule influencing processes like seed germination and root development.
- It participates in the regulation of vascular tissue development and stress responses.
Mechanism of Action of Plant Hormones
- Plant hormones interact with specific receptors, triggering a cascade of physiological responses.
- They can induce changes at the cellular level, affecting growth, development, and stress adaptation.
Characteristics of Animal Hormones vs. Plant Hormones
- Animal hormones often exist as larger molecules, such as peptides and proteins, while plant hormones tend to be smaller and more diverse.
- Animal hormones usually act on specific target organs, whereas plant hormones can have systemic effects throughout the plant.
Decentralized Regulation of Hormones
- Some plant hormones, such as auxins and cytokinins, show decentralized regulation, affecting various plant functions in different tissues.
- Their effects are finely tuned through interactions among multiple hormones.
Hormones Involved in Plant Processes
- Gibberellins play a crucial role in initiating various growth processes like seed germination and stem elongation.
- Other hormones, like ethylene, influence growth responses during ripening and stress.
Interaction and Regulation of Hormones
- The effects of certain hormones, like auxins and cytokinins, depend on the specific interplay with other hormones, determining plant responses to stimuli.
Size and Composition of Hormones
- Most hormones categorized as peptides and proteins are large molecules, participating in signaling pathways within plants.
Synthesis of Hormones
- Some hormones are synthesized throughout the plant body (e.g., ethylene), while others are produced in specific locations depending on developmental conditions.
Non-Synthetic Growth Regulators
- Naturally occurring growth regulators, such as auxins and gibberellins, are examples of non-synthetic regulators that influence plant growth and development.
Role of Jasmonates in Plant Growth
- Jasmonates are key for stress response, regulating defenses against herbivores and pathogens while influencing growth and development.
Sequence of Events in Plant Response to Stimulus
- Plant responses typically follow a sequence: stimulus detection, hormone release, signal transduction, and physiological response.
Decentralized Regulation of Plant Hormones
- Decentralized regulation allows for a flexible response mechanism, with plant hormones influencing one another to adapt to various environmental conditions.
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Description
Test your knowledge of plant growth regulators with this quiz. Explore the synthetic analogues of phyto-hormones and other regulators like calcium, polyamines, jasmonates, nitric oxide, and malate. See how plants respond to these regulators and enhance your understanding of plant growth processes.
