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Life Processes in Living Organisms Part -1

Maharashtra Board · Class 10 · Science

Complete topic list for Life Processes in Living Organisms Part -1 in Maharashtra Board Class 10 Science. Key concepts, sub-topics, and what to focus on for board exams.

45 questions40 flashcards5 concepts

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4 Topics · Maharashtra Board Class 10 Science

Topics in Life Processes in Living Organisms Part -1

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1. Living organisms and energy production

  • Carbohydrates, fats, and lipids are the main sources of energy.
  • Mitochondria harvest energy from carbohydrates and fats in each cell.
  • Food alone is not enough for energy production; oxygen is also necessary.
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2. Cellular respiration and ATP

  • Respiration occurs at two levels: body level and cellular level.
  • At body level, oxygen and carbon dioxide are exchanged between the body and the surroundings.
  • At cellular level, food is oxidized with or without oxygen.
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3. Aerobic respiration: glycolysis, Krebs cycle, and electron transfer chain

  • In aerobic respiration, glucose is oxidized in three steps.
  • Glycolysis is the first step and occurs in the cytoplasm.
  • In glycolysis, one glucose molecule is broken down step by step to form pyruvic acid, ATP, NADH, and water.
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4. Anaerobic respiration

  • Anaerobic respiration does not use oxygen.
  • Glycolysis and fermentation are the two steps of anaerobic respiration.
  • In anaerobic respiration, glucose is incompletely oxidized and less energy is released.

Key Concepts

Central concept: Life processes in living organisms depend on energy production, nutrient use, respiration, and cell division

Living organisms and life processesEnergy production in cellsAerobic respirationAnaerobic respirationNutrients and energy valueProteins and lipids in the bodyVitamins and waterCell division as a life process

Frequently Asked Questions

What are the important topics in Life Processes in Living Organisms Part -1 for Maharashtra Board Class 10 Science?
Life Processes in Living Organisms Part -1 covers several key topics that are frequently asked in Maharashtra Board Class 10 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 Part -1 — Maharashtra Board Class 10 Science?
Understand the core concepts first, then work through the 45 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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