This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 20 Locomotion And Movement – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 20 Locomotion And Movement Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of muscle is primarily involved in voluntary movements? A) Cardiac muscle. B) Involuntary muscle. C) Smooth muscle. D) Skeletal muscle. Show Answer Correct Answer: D) Skeletal muscle. 2. Which of the following statements about the striated muscles is false?I. In the centre of each I-band is an elastic fibre (Z-line) which bisects itII. Thin filaments are firmly attached to the Z-lineIII. M-line is a fibrous membrane in the middle of A-bandsIV. A sarcomere comprises one full A-bands and 2 half I-bands A) All. B) IV. C) I and II. D) None. Show Answer Correct Answer: D) None. 3. Which type of joint allows for the greatest range of motion? A) Synovial joint. B) Fibrous joint. C) Cartilaginous joint. D) Hinge joint. Show Answer Correct Answer: A) Synovial joint. 4. Which part can be easily felt as high point of shoulder? A) Sterno-cavicle joint. B) Acromian-cavicle joint. C) Gleno-cavicle joint. D) Superior angle of scapula. Show Answer Correct Answer: B) Acromian-cavicle joint. 5. Sarcoplasmic reticulum is a storehouse of which ion A) Ca2+. B) Na+. C) K+. D) Fe2+. Show Answer Correct Answer: A) Ca2+. 6. Z-line divides the myofibrils into- A) Sarcomere. B) Sarcolemma. C) Sarcosome. D) Microtubules. Show Answer Correct Answer: A) Sarcomere. 7. What is the primary role of the skeletal system? A) To digest food. B) To facilitate movement. C) To circulate blood. D) To produce hormones. Show Answer Correct Answer: B) To facilitate movement. 8. Passage of ova through the reproductive tract is facilitated by A) Ciliary movement. B) Amoeboid movement. C) Muscular movement. D) All of the above. Show Answer Correct Answer: A) Ciliary movement. 9. Where are the Ca$^{2+ }$ions stored in a muscle fibre? A) Sarcoplasm. B) Sarcomere. C) Sarcoplasmic Reticulum. D) Sarcolemma. Show Answer Correct Answer: C) Sarcoplasmic Reticulum. 10. Saddle joint is present between A) Radius and ulna. B) Carpals. C) Carpal and metacarpal of thumb. D) Ulna and humerus. Show Answer Correct Answer: C) Carpal and metacarpal of thumb. 11. S 1-The two halves of the pelvic girdle meet ventrally to form the pubic symphysis containing hyaline cartilage.S 2-Rapid spasms (wild contractions) in muscle due to low Ca++ sarcoplasmic reticulum in muscle cell. A) Both the statement are correct. B) Both the statement are incorrect. C) Only S 1 is correct. D) Only S 2 is correct. Show Answer Correct Answer: B) Both the statement are incorrect. 12. The joint in our neck which allows us to rotate our head left to right is? A) Pivot joint. B) Saddle joint. C) Hinge joint. D) Freely movable joint. Show Answer Correct Answer: A) Pivot joint. 13. How many bones are in the human upper limbs? A) 48. B) 72. C) 60. D) 54. Show Answer Correct Answer: C) 60. 14. A-joints are point of contact between bones or between bones and cartilagesR-force generated by the muscles is used to carry out movement through joints, where the joints act as a fulcrum A) Both A&R are false. B) A is true but R is false. C) A&R both true, but R is not correct explanation of A. D) A&R both true, R is correct explanation of A. Show Answer Correct Answer: C) A&R both true, but R is not correct explanation of A. 15. Choose the correct statement:A) Z line is present in the centre of the light band B) Thin Filaments are firmly attached to the M-Line C) The Central part of thick filaments, not overlapped by thin filament is Z BandD) Light band has only thin filament A) A and D. B) B and C. C) A and C. D) B and D. Show Answer Correct Answer: A) A and D. 16. What is the role of calcium ions in muscle contraction? A) They provide energy for ATP production. B) They bind to troponin, allowing actin and myosin interaction. C) They initiate the release of neurotransmitters. D) They help in the relaxation of muscles. Show Answer Correct Answer: B) They bind to troponin, allowing actin and myosin interaction. 17. A-myasthenia gravis is an autoimmune disorder affecting neuromuscular junctionR-it leads to fatigue, weakening and paralysis of voluntary muscles A) A&R both true, R is correct explanation of A. B) A&R both true, but R is not correct explanation of A. C) A is true but R is false. D) Both A&R are false. Show Answer Correct Answer: A) A&R both true, R is correct explanation of A. 18. What type of joint allows for gliding movements? A) Plane joints. B) Pivot joints. C) Ball-and-socket joints. D) Hinge joints. Show Answer Correct Answer: A) Plane joints. 19. Progressive degeneration of skeletal muscle mostly due to genetic disorder represents ..... A) Myasthenia gravis. B) Osteoporosis. C) Arthritis. D) Muscular Dystrophy. Show Answer Correct Answer: D) Muscular Dystrophy. 20. Skeletal system consists of- A) Only bones. B) Only cartilage. C) A framework of bones and a few cartilage. D) A framework of cartilage and a few bones. Show Answer Correct Answer: C) A framework of bones and a few cartilage. 21. (a) Cytoskeletal elements like microfilaments are involved in amoeboid movement.(b) The globular head of Actin is an active ATPase enzyme. A) Both the statements are correct. B) Both the statements are incorrect. C) Only S 1 is correct. D) Only S 2 is correct. Show Answer Correct Answer: C) Only S 1 is correct. 22. The compound or pigment acting as an oxygen store in skeletal muscles is- A) Myoglobin. B) Haemoglobin. C) Myokinase or ATP. D) Cytochrome. Show Answer Correct Answer: A) Myoglobin. 23. ''A" is a large triangular flat bone situated in the dorsal part of the thorax between the ''B" and the seventh ribs. Identify A and B A) A-Patella B-third. B) A-Clavicle B-Eight. C) A-Scapula B-sixth. D) A-scapula B-second. Show Answer Correct Answer: D) A-scapula B-second. 24. Joint between Carpal and Metacarpal is- A) Pivot Joint. B) Hinge Joint. C) Ball and Socket Joint. D) Saddle Joint. Show Answer Correct Answer: D) Saddle Joint. 25. Which one is the contractile protein? A) Troponin. B) Myosin. C) Tropomyosin. D) All. 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