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Chapters1 - The Living World
2 - Biological Classification
3 - Plant Kingdom
4 - Animal Kingdom
5 - Morphology of Flowering Plants
6 - Anatomy of Flowering Plants
7 - Structural Organisation in Animals
8 - Cell: The Unit of Life
9 - Biomolecules
10 - Cell Cycle and Cell Division
11 - Transport in Plants
12 - Mineral Nutrition
13 - Photosynthesis in Higher Plants
14 - Respiration in Plants
15 - Plant Growth and Development
16 - Digestion and Absorption
17 - Breathing and Exchange of Gases
18 - Body Fluids and Circulation
19 - Excretory Products and their Elimination
20 - Locomotion and Movement
21 - Neural Control and Coordination
22 - Chemical Coordination and Integration
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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.
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