Class 11 Biology MCQ Chapter 17 Locomotion and Movement
Welcome to Class 11 Biology MCQ Chapter 17 Locomotion and Movement English Medium. In this article, you will find a collection of important multiple-choice questions (MCQs) with answers that are specially prepared for AHSEC Higher Secondary First Year students.
The chapter Locomotion and Movement helps students understand how living organisms and the human body perform different types of movements. It covers important topics such as muscular movement, skeletal system, joints, muscle contraction, locomotion in humans, and disorders related to muscles and bones. These concepts are essential for understanding the coordination between the muscular and skeletal systems.
The MCQs included here are based on the latest AHSEC syllabus and examination pattern. They are designed to help students revise important topics, improve conceptual understanding, and practice exam-oriented questions. Regular practice can make learning easier and help students perform better in examinations.
Whether you are preparing for class assessments, annual exams, or the AHSEC HS First Year Examination, these MCQ solutions will help you strengthen your Biology preparation and boost your confidence.
Unit V. Human Physiology
Locomotion and Movement
VSA & MCQ
I. Short Answer Questions (1 Mark Each)
1. What is locomotion?
Ans: Locomotion is the movement of an organism from one place to another.
2. What is movement?
Ans: Movement is a change in position of body parts without necessarily changing location.
3. What are muscles?
Ans: Muscles are contractile tissues responsible for movement.
4. Name the three types of muscles.
Ans: Skeletal, smooth, and cardiac muscles.
5. What is a sarcomere?
Ans: The functional unit of muscle fibre between two Z-lines.
6. What is sliding filament theory?
Ans: It explains muscle contraction by sliding of actin over myosin filaments.
7. What is the role of calcium ions in muscle contraction?
Ans: They expose active sites on actin by binding to troponin.
8. What is ATP role in muscle contraction?
Ans: ATP provides energy for cross-bridge formation and breaking.
9. What is a joint?
Ans: A point where two bones meet.
10. Name the types of joints.
Ans: Fibrous, cartilaginous, and synovial joints.
11. What is a synovial joint?
Ans: A freely movable joint with synovial fluid.
12. What is a ligament?
Ans: A connective tissue that joins bone to bone.
13. What is a tendon?
Ans: A connective tissue that connects muscle to bone.
14. What is myoglobin?
Ans: An oxygen-binding pigment in muscles.
15. What is osteoporosis?
Ans: A disease causing weakening of bones.
II. Multiple Choice Questions (MCQs)
1. Movement of body parts without change of place is:
(a) Locomotion
(b) Movement
(c) Rotation
(d) Circulation
Ans: (b)
2. Functional unit of muscle is:
(a) Neuron
(b) Sarcomere
(c) Myofibril
(d) Fibre
Ans: (b)
3. Thin filament is made of:
(a) Myosin
(b) Actin
(c) Keratin
(d) Collagen
Ans: (b)
4. Thick filament contains:
(a) Actin
(b) Myosin
(c) Troponin
(d) Tubulin
Ans: (b)
5. Calcium ions are stored in:
(a) Mitochondria
(b) Sarcoplasmic reticulum
(c) Nucleus
(d) Cytoplasm
Ans: (b)
6. Energy for muscle contraction comes from:
(a) ADP
(b) ATP
(c) DNA
(d) RNA
Ans: (b)
7. Cardiac muscles are:
(a) Voluntary
(b) Involuntary
(c) Non-striated
(d) Smooth
Ans: (b)
8. Smooth muscles are found in:
(a) Bones
(b) Heart
(c) Internal organs
(d) Brain
Ans: (c)
9. Skeletal muscles are:
(a) Involuntary
(b) Voluntary
(c) Smooth
(d) Branched
Ans: (b)
10. Joint between skull bones is:
(a) Synovial
(b) Cartilaginous
(c) Fibrous
(d) Hinge
Ans: (c)
11. Ball and socket joint is found in:
(a) Elbow
(b) Knee
(c) Shoulder
(d) Wrist
Ans: (c)
12. Hinge joint allows:
(a) Rotation
(b) Back and forth movement
(c) Twisting
(d) Circular movement
Ans: (b)
13. Pivot joint is found between:
(a) Femur and pelvis
(b) Atlas and axis
(c) Skull bones
(d) Wrist bones
Ans: (b)
14. Number of bones in human skeleton:
(a) 200
(b) 206
(c) 210
(d) 208
Ans: (b)
15. Red muscles contain:
(a) Less oxygen
(b) More myoglobin
(c) No mitochondria
(d) Less blood supply
Ans: (b)
16. White muscles are:
(a) Slow
(b) Fast
(c) Red
(d) Involuntary
Ans: (b)
17. Ligament connects:
(a) Muscle to bone
(b) Bone to bone
(c) Muscle to muscle
(d) Bone to skin
Ans: (b)
18. Tendon connects:
(a) Bone to bone
(b) Muscle to bone
(c) Muscle to muscle
(d) Bone to skin
Ans: (b)
19. Synovial fluid helps in:
(a) Digestion
(b) Lubrication
(c) Respiration
(d) Excretion
Ans: (b)
20. Sarcomere is between:
(a) M-lines
(b) Z-lines
(c) A-bands
(d) I-bands
Ans: (b)
21. A-band contains:
(a) Only actin
(b) Only myosin
(c) Both actin and myosin
(d) No filaments
Ans: (c)
22. I-band contains:
(a) Only myosin
(b) Only actin
(c) Both
(d) None
Ans: (b)
23. H-zone contains:
(a) Actin only
(b) Myosin only
(c) Both
(d) None
Ans: (b)
24. Muscle fatigue is due to:
(a) Oxygen
(b) Lactic acid
(c) Water
(d) Glucose
Ans: (b)
25. Intercalated discs are present in:
(a) Smooth muscle
(b) Cardiac muscle
(c) Skeletal muscle
(d) Bone
Ans: (b)
26. Largest bone in human body:
(a) Femur
(b) Tibia
(c) Humerus
(d) Radius
Ans: (a)
27. Smallest bone is:
(a) Femur
(b) Stapes
(c) Radius
(d) Ulna
Ans: (b)
28. Number of cervical vertebrae:
(a) 5
(b) 6
(c) 7
(d) 8
Ans: (c)
29. Floating ribs are:
(a) 1st & 2nd
(b) 5th & 6th
(c) 11th & 12th
(d) 9th & 10th
Ans: (c)
30. Osteoporosis affects:
(a) Muscles
(b) Bones
(c) Joints
(d) Blood
Ans: (b)
