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Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET PDF Download

Growth

(i) Overview and Characteristics

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

(ii) Meristems and Measurements

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

(iii) Phases and Rates

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEETConstant linear growth, a plot of length L against time t

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEETAn idealised sigmoid growth curve typical of cells in culture, and many higher plants and plant organs

(iv) Conditions for Growth

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

Differentiation, Dedifferentiation, and Redifferentiation

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

Development

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEETSequence of Developmental Process in Plants

Plant Growth Regulators (PGRs)

(i) Characteristics and Classification

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

(ii) Discovery of PGRs

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

(iii) Physiological Effects and Applications

Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET

The document Cheat Sheet : Plant Growth and Development | Biology Class 11 - NEET is a part of the NEET Course Biology Class 11.
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FAQs on Cheat Sheet : Plant Growth and Development - Biology Class 11 - NEET

1. What are the key factors that affect plant growth and development?
Ans. The key factors that affect plant growth and development include light, water, temperature, soil nutrients, and air quality. Light is essential for photosynthesis, which provides energy for growth. Water is crucial for nutrient transport and metabolic processes. Temperature influences enzyme activity and physiological processes. Soil nutrients provide the essential elements for growth, while air quality, including carbon dioxide levels, impacts photosynthesis.
2. How do hormones influence plant growth?
Ans. Plant hormones, or phytohormones, play a significant role in regulating growth and development. Auxins promote cell elongation and are involved in root development. Gibberellins stimulate stem elongation, seed germination, and flowering. Cytokinins promote cell division and shoot growth. Ethylene regulates fruit ripening and responses to stress, while abscisic acid helps plants respond to drought and stress conditions.
3. What is the process of photosynthesis and its importance in plant growth?
Ans. Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, using carbon dioxide and water to produce glucose and oxygen. This process is vital for plant growth as it provides the energy needed for various metabolic activities, including growth, reproduction, and repair. The glucose produced is also a building block for other organic compounds essential for plant structure and function.
4. How does soil quality affect plant growth?
Ans. Soil quality significantly impacts plant growth as it determines the availability of nutrients, water retention, and aeration. Healthy soil contains a balance of sand, silt, and clay, which influences drainage and nutrient absorption. Additionally, the presence of organic matter enhances soil fertility and supports beneficial microorganisms. Poor soil quality can lead to stunted growth, nutrient deficiencies, and increased susceptibility to diseases.
5. What are the stages of plant development from germination to maturity?
Ans. The stages of plant development include germination, seedling, vegetative growth, flowering, and maturity. Germination begins when a seed absorbs water, swelling and breaking dormancy. The seedling stage sees the development of leaves and roots. During vegetative growth, the plant focuses on leaf and stem development. The flowering stage involves the formation of reproductive structures, and maturity marks the completion of the plant's life cycle, enabling seed production for the next generation.
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