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Locomotion and Movement

Manipur Board · Class 11 · Biology

Quick revision notes for Locomotion and Movement — Manipur Board Class 11 Biology. Key concepts, formulas, and definitions for last-minute revision.

107 questions25 flashcards5 concepts

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Key Topics to Revise

1

Types of Movements in Living Organisms

  • Movement vs Locomotion: All locomotions are movements, but all movements are not locomotions
  • Locomotion involves change of place or location and is voluntary
  • Three types of cellular movements in humans: Amoeboid, Ciliary, and Muscular
2

Types of Muscles

  • Muscles constitute 40-50% of adult human body weight
  • Four properties of muscles: Excitability, Contractility, Extensibility, Elasticity
  • Three types based on location: Skeletal, Visceral (Smooth), Cardiac
3

Structure of Skeletal Muscle

  • Muscle → Muscle bundles (fascicles) → Muscle fibers → Myofibrils → Myofilaments
  • Fascia: Collagenous connective tissue holding muscle bundles together
  • Muscle fiber is a syncytium (multinucleated) enclosed by sarcolemma
4

Molecular Structure of Muscle Proteins

  • Actin (thin filament): Made of F-actin (filamentous) which is polymer of G-actin (globular)
  • Tropomyosin runs along F-actin throughout its length
  • Troponin complex distributed at regular intervals on tropomyosin

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Full Notes

Key Concepts

Movement refers to any changeHuman body cells exhibit three mainThree types based on locationThe functional unit of muscle contractionMuscle contraction occurs when thin actin

Frequently Asked Questions

What are the important topics in Locomotion and Movement for Manipur Board Class 11 Biology?
Locomotion and Movement covers several key topics that are frequently asked in Manipur Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Locomotion and Movement — Manipur Board Class 11 Biology?
Understand the core concepts first, then work through the 107 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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