Chapter 15 of 18
Revision Notes
Life Processes in Living Organisms — Revision Notes
Maharashtra Board · Class 9 · Science
Life Processes in Living Organisms revision notes for Maharashtra Board Class 9 Science: 3 topics in quick points.
44 questions24 flashcards5 concepts
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Key Topics to Revise
1
Transportation in Plants
- Transportation is the process by which substances synthesized or absorbed in one part reach another part of the organism
- Plants need inorganic substances like nitrogen, phosphorus, magnesium, manganese, sodium from soil
- Xylem conducts water and minerals from roots to all parts
2
Excretion in Plants and Animals
- Excretion: Removal of harmful waste substances from the body
- In plants: No special excretory organs, waste removal through diffusion and shedding of parts
- Plant wastes: Stored in vacuoles, old xylem (as resin, gum), and removed through falling leaves/fruits
3
Co-ordination in Plants and Humans
- Co-ordination: Bringing about different processes in proper sequence for smooth functioning
- Plant movements: Tropisms (growth-related) and growth-irrelevant movements
- Types of tropisms: Phototropism (light), Gravitropism (gravity), Hydrotropism (water), Chemotropism (chemicals)
Get complete notes with diagrams and examples
Full NotesKey Concepts
Plants transport water and minerals throughWhen root cells absorb waterWater evaporates from leaf surfaces throughPlants remove waste through simple diffusionConsists of kidneys (filter blood)
Frequently Asked Questions
What are the important topics in Life Processes in Living Organisms for Maharashtra Board Class 9 Science?
Key topics in Life Processes in Living Organisms include Transportation in Plants, Excretion in Plants and Animals, Co-ordination in Plants and Humans. Study these first, then practise questions on each for Class 9 exams.
How should I revise Life Processes in Living Organisms for Class 9 exams?
Learn the core ideas first, then work through the 44 practice questions on Life Processes in Living Organisms. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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