Class 11
NCERT Exemplar
Chapter 1: The Living World
37 questions
Chapter 2: Biological Classification
33 questions
Chapter 3: Plant Kingdom
28 questions
Chapter 4: Animal Kingdom
45 questions
Chapter 5: Morphology of Flowering Plants
42 questions
Chapter 6: Anatomy of Flowering Plants
52 questions
Chapter 7: Structural Organization in Animals
48 questions
Chapter 8: Cell: The Unit of Life
39 questions
Chapter 9: Biomolecules
31 questions
Chapter 10: Cell Cycle and Cell Division
43 questions
Chapter 11: Transport in Plants
66 questions
Chapter 12: Mineral Nutrition
39 questions
Chapter 13: Photosynthesis in Higher Plants
59 questions
Chapter 14: Respiration in Plants
42 questions
Chapter 15: Plant Growth and Development
48 questions
Chapter 16: Digestion and Absorption
34 questions
Chapter 17: Breathing and Exchange of Gases
32 questions
Chapter 18: Body Fluids and Circulation
42 questions
Chapter 19: Excretory Products and their Elimination
44 questions
Chapter 20: Locomotion and Movement
39 questions
Chapter 21: Neural Control and Coordination
31 questions
Chapter 22: Chemical Coordination and Integration
39 questions
Solving time: 3 mins
How have the terrestrial organisms adapted themselves for conservation of water?
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Text solution
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Ammonia produced by metabolism is converted into urea in the liver of these animals and released into the blood, which is filtered and excreted out by the kidneys.
Some urea is retained in kidney in order to maintain osmolarity, reptiles birds, land snails and insects excrete nitrogenous waste, as uric acid in the form of pellet or paste with a minimum loss of water and are called uricotelic animals. Conversion of ammonia to uric acid and its subsequent elimination requires lesser amount of water.
Hence, due to less availability of water on land, and in order to minimise water loss, terrestrial organism adapted themselves accordingly.
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| Question Text | How have the terrestrial organisms adapted themselves for conservation of water? |
| Topic | Excretory Products and their Elimination |
| Subject | Biology |
| Class | Class 11 |
| Answer Type | Text solution:1 |
| Upvotes | 63 |
