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Class 11 Biology — Chapter 17: Locomotion and Movement
60 practice questions · 20 Easy · 20 Medium · 20 Hard
Free NCERT-aligned multiple-choice practice for Class 11 Biology, Chapter 17 (Locomotion and Movement). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 60.
Sample questions
Q1Easy
Voluntary muscles are:
A.Skeletal/striated✓ correct
B.Cardiac
C.Smooth
D.All
Why
Attached to bones; under conscious control.
Q2Medium
Sliding filament theory: contraction is due to:
A.Actin sliding over myosin✓ correct
B.Bones moving
C.Nerves contracting
D.Cells dividing
Why
Cross-bridges and ATP power the slide.
Q3Hard
Ca²⁺ binds ___ to initiate muscle contraction.
A.Troponin✓ correct
B.Actin directly
C.Tropomyosin
D.Myosin head only
Why
Ca²⁺-troponin shifts tropomyosin off binding sites.
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