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Mind Map: Plant - Growth & Development
The document Mind Map: Plant - Growth & Development is a part of the NEET Course Biology Class 11.
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| 1. What are the main factors that influence plant growth and development? |  |
Ans. The main factors that influence plant growth and development include environmental conditions such as light, temperature, water availability, soil nutrients, and atmospheric gases. Light is crucial for photosynthesis, while temperature affects metabolic processes. Water is essential for nutrient transport and cellular functions, and soil nutrients provide the necessary elements for growth. Additionally, hormonal signals within the plant, such as auxins, gibberellins, and cytokinins, play a vital role in regulating growth and development.
| 2. How do hormones affect plant growth? | |
Ans. Plant hormones, or phytohormones, are chemical messengers that regulate various aspects of growth and development. For instance, auxins promote cell elongation and are involved in phototropism and gravitropism. Gibberellins stimulate stem elongation, seed germination, and flowering. Cytokinins promote cell division and can delay aging in plant tissues. Abscisic acid is involved in stress responses, particularly in regulating stomatal closure during drought. These hormones interact in complex ways to coordinate growth responses to environmental stimuli.
| 3. What is the role of photosynthesis in plant growth? | |
Ans. Photosynthesis is the process by which green plants convert light energy, usually from the sun, into chemical energy stored in glucose. This process occurs primarily in the chloroplasts and involves the absorption of carbon dioxide (CO₂) and water (H₂O) to produce glucose (C₆H₁₂O₆) and oxygen (O₂). The glucose produced serves as an energy source for growth and development, supporting metabolic processes, cellular respiration, and the synthesis of other essential compounds, such as starch and cellulose.
| 4. What are the stages of plant development? | |
Ans. Plant development typically occurs in several stages: germination, vegetative growth, flowering, and fruiting. Germination is the initial stage where seeds absorb water and begin to sprout. During vegetative growth, the plant develops leaves, stems, and roots, establishing a strong structure for nutrient acquisition. The flowering stage is marked by the formation of flowers, which are essential for reproduction. Finally, fruiting involves the development of fruits that contain seeds, ensuring the continuation of the species.
| 5. How does the environment affect plant growth? | |
Ans. The environment significantly affects plant growth in several ways. Light intensity and quality influence photosynthesis rates, while temperature affects metabolic processes, growth rates, and flowering times. Water availability is critical, as drought can limit growth, while excess water can lead to root rot. Soil composition, pH, and nutrient availability also play vital roles in plant health. Additionally, environmental factors such as wind, humidity, and the presence of pests or diseases can further impact growth and development, requiring plants to adapt for survival.
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Document Description: Mind Map: Plant - Growth & Development for NEET 2026 is part of Biology Class 11 preparation. The notes and questions for Mind Map: Plant - Growth & Development have been prepared according to the NEET exam syllabus. Information about Mind Map: Plant - Growth & Development covers topics like and Mind Map: Plant - Growth & Development Example, for NEET 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Mind Map: Plant - Growth & Development.
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