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Revision Notes

Life Processes in Living Organisms

Maharashtra Board · Class 9 · Science

Quick revision notes for Life Processes in Living Organisms — Maharashtra Board Class 9 Science. Key concepts, formulas, and definitions for last-minute revision.

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)

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Full Notes

Key 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?
Life Processes in Living Organisms covers several key topics that are frequently asked in Maharashtra Board Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Life Processes in Living Organisms — Maharashtra Board Class 9 Science?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and 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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