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Locomotion and Movement — Chapter Summary

CBSE · Class 11 · Biology

Summary of Locomotion and Movement for CBSE Class 11 Biology. Part of the CBSE Class 11 Biology syllabus. Movement is a basic feature of living organisms.

127 questions78 flashcards5 concepts

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Overview

Movement is a basic feature of living organisms. Some movements change only position in a part of the body, while locomotion changes the place of the whole organism. Human movement depends on the coordinated action of muscles, bones, joints, and nerves. The chapter also covers the structure of muscl

Key Concepts

Movement is any change in position

Movement is any change in position of a body part or cell. Locomotion is movement that results in a change of place of the whole organism. Walking, ru

Human cells show amoeboid

Human cells show amoeboid, ciliary, and muscular movements. Amoeboid movement is seen in macrophages and leucocytes. Ciliary movement helps in moving

Muscles are of three types based

Muscles are of three types based on location: skeletal, visceral, and cardiac. Skeletal muscles are striated and voluntary. Visceral muscles are smoot

Each muscle fibre is lined by

Each muscle fibre is lined by sarcolemma and contains sarcoplasm with many nuclei, so it is a syncitium. Inside it are many myofibrils arranged in par

A sarcomere is the portion

A sarcomere is the portion of a myofibril between two successive Z lines and is the functional unit of contraction. The I band contains actin filament

Learning Objectives

  • Understand the difference between movement and locomotion.
  • Identify the three main types of movement in human cells.
  • Describe the structure of skeletal muscle fibre and sarcomere.
  • Explain the sliding filament theory of muscle contraction.
  • Recognise the role of calcium ions, troponin, and ATP in contraction and relaxation.

Frequently Asked Questions

What are the important topics in Locomotion and Movement for CBSE Class 11 Biology?
Key topics in Locomotion and Movement include Types of Movement, Muscle: Structure and Types, Structure of Myofibril and Sarcomere, Contractile Proteins. Study these first, then practise questions on each for Class 11 exams.
How should I revise Locomotion and Movement for Class 11 exams?
Learn the core ideas first, then work through the 127 practice questions on Locomotion and Movement. 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.

More resources for Locomotion and Movement

All CBSE Class 11 Biology Chapter Summary

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