NEET Exam > NEET Videos > Biology Class 11 > Plant Growth Regulators: Physiological Effects
Plant Growth Regulators: Physiological Effects Video Lecture | Biology Class 11 - NEET
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FAQs on Plant Growth Regulators: Physiological Effects Video Lecture - Biology Class 11 - NEET
| 1. What are plant growth regulators and how do they affect plant physiology? |  |
Ans. Plant growth regulators are chemicals that regulate various aspects of plant growth and development. They can influence processes such as cell division, elongation, differentiation, and senescence. For example, auxins promote cell elongation, cytokinins stimulate cell division, gibberellins promote stem elongation, and abscisic acid regulates seed dormancy and stress responses.
| 2. How do plant growth regulators affect plant hormone levels? | |
Ans. Plant growth regulators can either mimic or inhibit the action of natural plant hormones. For instance, synthetic auxins can mimic the effects of naturally occurring auxins, while inhibitors like abscisic acid can suppress the production or action of plant hormones. By manipulating hormone levels, plant growth regulators can regulate various physiological processes in plants.
| 3. Can plant growth regulators enhance crop yields? | |
Ans. Yes, plant growth regulators can enhance crop yields by influencing various aspects of plant growth and development. For example, they can increase seed germination rates, promote root and shoot growth, improve fruit set, delay senescence, and enhance stress tolerance. However, the effectiveness of plant growth regulators may vary depending on the crop species, environmental conditions, and application methods.
| 4. Are plant growth regulators safe for humans and the environment? | |
Ans. Plant growth regulators undergo rigorous testing and regulation to ensure their safety for humans and the environment. They are generally considered safe when used according to recommended guidelines. However, it is important to follow proper handling and application procedures to minimize any potential risks. Additionally, regulatory authorities continuously assess and update safety guidelines for plant growth regulators.
| 5. Can plant growth regulators be used in organic farming? | |
Ans. The use of plant growth regulators in organic farming is subject to specific regulations and certifications. Some plant growth regulators may be allowed in organic farming if they meet certain criteria, such as being derived from natural sources and not causing significant harm to the environment. However, it is important for organic farmers to consult and comply with the guidelines provided by organic certification bodies in their respective regions.
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Nov 15, 2024 Last updated |
Video Description: Plant Growth Regulators: Physiological Effects for NEET 2024 is part of Biology Class 11 preparation.
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