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Chapters
Chapter 2: Biological Classification
Chapter 3: Plant Kingdom
Chapter 4: Animal Kingdom
Chapter 5: Morphology of Flowering Plants
Chapter 6: Anatomy of Flowering Plants
Chapter 7: Structural Organisation in Animals
Chapter 8: Cell: The Unit of Life
Chapter 9: Biomolecules
Chapter 10: Cell Cycle and Cell Division
Chapter 11: Transport in Plants
Chapter 12: Mineral Nutrition
Chapter 13: Photosynthesis in Higher Plants
Chapter 14: Respiration in Plants
▶ Chapter 15: Plant Growth and Development
Chapter 16: Digestion and Absorption
Chapter 17: Breathing and Exchange of Gases
Chapter 18: Body Fluids and Circulation
Chapter 19: Excretory Products and their Elimination
Chapter 20: Locomotion and Movement
Chapter 21: Neural Control and Coordination
Chapter 22: Chemical Coordination and Integration
Solutions for Chapter 15: Plant Growth and Development
Below listed, you can find solutions for Chapter 15 of CBSE, Karnataka Board PUC NCERT for Class 11 Biology.
NCERT solutions for Class 11 Biology Chapter 15 Plant Growth and Development Exercises [Pages 253 - 254]
Define growth
Define differentiation
Define Development,
Define Redifferentiation
Define determinate growth
Define Meristem
Define Growth rate
Why is not any one parameter good enough to demonstrate growth throughout the life of a flowering plant?
Describe briefly Arithmetic growth
Describe briefly Geometric growth
Describe briefly Sigmoid growth curve
Define De-differentiation
Describe briefly Absolute and relative growth rates
List five main groups of natural plant growth regulators. Write a note on discovery, physiological functions and agricultural/horticultural applications of any one of them.
What do you understand by photoperiodism and vernalisation? Describe their significance
Why is Abscisic acid also known as stress hormone?
Both growth and differentiation in higher plants are open’. Comment.
Both a short day plant and a long day plant can flower simultaneously in a given place. Explain.
Which one of the plant growth regulators would you use if you are asked to:
(a) Induce rooting in a twig
(b) Quickly ripen a fruit
(c) Delay leaf senescence
(d) Induce growth in axillary buds
(e) Bolt’ a rosette plant
(f) Induce immediate stomatal closure in leaves.
Would a defoliated plant respond to photoperiodic cycle? Why?
What would be expected to happen if:
(a) GA3 is applied to rice seedlings
(b) Dividing cells stop differentiating
(c) A rotten fruit gets mixed with unripe fruits
(d) You forget to add cytokinin to the culture medium.
Solutions for Chapter 15: Plant Growth and Development
NCERT solutions for Class 11 Biology chapter 15 - Plant Growth and Development
Shaalaa.com has the CBSE, Karnataka Board PUC Mathematics Class 11 Biology CBSE, Karnataka Board PUC solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Class 11 Biology CBSE, Karnataka Board PUC 15 (Plant Growth and Development) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Class 11 Biology chapter 15 Plant Growth and Development are Seed Germination, Phases of Plant Growth, Conditions for Plant Growth, Differentiation, Dedifferentiation and Redifferentiation, Concept of Development, Characteristics of Growth Regulators, Seed Dormancy, Vernalisation, Photoperiodism, Introduction of Plant Growth and Development, Co-ordination in Plant: Tropism in Plants, Plant Growth and Development (Questions), Plant Growth Generally is Indeterminate, Plant Growth Rate, Discovery of Plant Growth Regulators, Physiological Effects of Plant Growth Regulators.
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