Class 11 · Locomotion and Movement

Muscular Contraction and Coordinated Locomotion — NEET Biology

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📖 NCERT Source

Movement of our limbs, jaws, tongue, etc, require muscular movement. The contractile property of muscles are effectively used for locomotion and other movements by human beings and majority of multicellular organisms. Locomotion requires a perfect coordinated activity of muscular, skeletal and neural systems. In this chapter, you will learn about the types of muscles, their structure, mechanism of their contraction and important aspects of the skeletal system.

NCERT Biology · Class 11 · Chapter 17 · Paragraph 6
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Assertion (A): Locomotion is a complex physiological process. Reason (R): Locomotion requires perfect coordinated activity of muscular, skeletal and neural systems.

📖 Solution & NCERT Explanation
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Correct answer: A If both assertion and reason are true and the reason is the correct explanation of the assertion.

NCERT confirms locomotion is complex (Assertion true). NCERT states “Locomotion requires a perfect coordinated activity of muscular, skeletal and neural systems” (Reason true). The Reason explains WHY locomotion is complex - it requires perfect coordination of three different body systems working together, explaining the basis for its complexity.

❓ Frequently Asked Questions
What does NCERT say about Movement our limbs jaws?
Movement of our limbs, jaws, tongue, etc, require muscular movement. The contractile property of muscles are effectively used for locomotion and other movements by human beings and majority of multicellular organisms.
Has this concept appeared in NEET?
Practice this NCERT concept with questions on MedicNEET.
Which chapter is this from?
Locomotion and Movement, Class 11 NCERT Biology.

Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.

176/180
of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

176 of 180 ReNEET 2026 questions traced to MedicNEET17,000+ Biology questionsHindi + English
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