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
Chapter 15 - Plant Growth and Development
Pages 253 - 254
Define determinate growth
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
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.
Textbook solutions for Class 11
NCERT solutions for Class 11 Biology chapter 15 - Plant Growth and Development
NCERT solutions for Class 11 Biology chapter 15 (Plant Growth and Development) include all questions with solution and detail explanation from Biology Textbook for Class 11. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has created the CBSE Biology Textbook for Class 11 solutions in a manner that help students grasp basic concepts better and faster.
Further, we at shaalaa.com are providing such solutions so that students can prepare for written exams. These NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.
Concepts covered in Class 11 Biology chapter 15 Plant Growth and Development are Seed Germination, Phases of Growth, Conditions of Growth, Differentiation, Dedifferentiation and Redifferentiation, Concept of Development, Characteristics of Growth Regulators, Seed Dormancy, Vernalisation, Photoperiodism, Introduction of Plant Growth and Development, Tropic Movements in Plants, Plant Growth and Development (Questions), Plant Growth Generally is Indeterminate, Growth Rates, Discovery of Plant Growth Regulators, Physiological Effects of Plant Growth Regulators.
Using NCERT solutions for Class 11 Biology by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 11 prefer NCERT Textbook Solutions to score more in exam.
Get the free view of Class 11 Biology chapter 15 Plant Growth and Development and can use shaalaa.com to keep it handy for your exam preparation