This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 20 Locomotion And Movement – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 20 Locomotion And Movement Quiz 6 (33 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. 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. 3. 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. 4. Progressive degeneration of skeletal muscle mostly due to genetic disorder represents ..... A) Arthritis. B) Osteoporosis. C) Muscular Dystrophy. D) Myasthenia gravis. Show Answer Correct Answer: C) Muscular Dystrophy. 5. 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. 6. (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. 7. The compound or pigment acting as an oxygen store in skeletal muscles is- A) Myoglobin. B) Myokinase or ATP. C) Haemoglobin. D) Cytochrome. Show Answer Correct Answer: A) Myoglobin. 8. ''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-scapula B-second. C) A-Scapula B-sixth. D) A-Clavicle B-Eight. Show Answer Correct Answer: B) A-scapula B-second. 9. 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. 10. Which one is the contractile protein? A) Troponin. B) Myosin. C) Tropomyosin. D) All. Show Answer Correct Answer: B) Myosin. 11. Which of the following statements about cardiac muscle is true? A) It is striated. B) It is found in the limbs. C) It is smooth. D) It is voluntary. Show Answer Correct Answer: A) It is striated. 12. Human adult vertebral formula is- A) C$_{7}$ T$_{112}$ L$_{2}$ S$_{1}$ C$_{2}$. B) C$_{4}$ T$_{8}$ L$_{4}$ S$_{5}$ C$_{8}$. C) C$_{7}$ T$_{8}$ L$_{5}$ S$_{6}$ C$_{7}$. D) C$_{7}$ T$_{12}$ L$_{5}$ S$_{1}$ C$_{1}$. Show Answer Correct Answer: D) C$_{7}$ T$_{12}$ L$_{5}$ S$_{1}$ C$_{1}$. 13. Which one of the following statements are incorrect about human skeleton:-(A) Glenoid Cavity is a depression in which pelvic girdle (B) Occipital and parietal bones of the skull are articulate by fibrous joint (C) The joint between adjacent vertebrae in the vertebral column is Hinge joint (D) Gout is inflammation of joints, due to accumulation of uric acid crystals. A) C, D. B) A, B. C) A, C. D) B, C. Show Answer Correct Answer: C) A, C. 14. Acetabulum occurs in- A) Pelvic girdle. B) Pectoral girdle. C) Cranium. D) Vertebrae. Show Answer Correct Answer: A) Pelvic girdle. 15. Pick out the correct match. A) Sternum-14. B) Face-5. C) Ribs-20. D) Pelvis-3. Show Answer Correct Answer: D) Pelvis-3. 16. A-visceral muscles are smooth in appearanceR-many muscle cells assemble in a branching pattern to form a visceral muscle 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: C) A is true but R is false. 17. How many ear ossicle do you have A) 3. B) 6. C) 9. D) None. Show Answer Correct Answer: B) 6. 18. What is the total number of bones in hind limb? A) 21. B) 30. C) 14. D) 24. Show Answer Correct Answer: B) 30. 19. Light bands (thin filaments) contain actin and are called- A) A-bands or Isotropic band. B) A-bands or Anisotropic bands. C) I-bands or Isotropic bands. D) I-bands or Anisotropic bands. Show Answer Correct Answer: C) I-bands or Isotropic bands. 20. Which type of muscle is found in the walls of hollow organs? A) Striated muscle. B) Cardiac muscle. C) Smooth muscle. D) Skeletal muscle. Show Answer Correct Answer: C) Smooth muscle. 21. Actin protein occurs in which of the following forms: A) Polymeric F actin and monomeric G actin. B) Monomeric F actin, polymeric G actin. C) Globular F and G actin. D) More then one correct. Show Answer Correct Answer: A) Polymeric F actin and monomeric G actin. 22. Number of bones in hind limb of human is- A) 24. B) 14. C) 30. D) 21. Show Answer Correct Answer: C) 30. 23. ATP provides energy for muscle contraction by allowing for A) Release of Ca2+ from sarcoplasmic reticulum. B) An action potential formation in the muscle cell. C) Cross-bridge detachment of myosin from actin. D) Cross-bridge attachment of myosin to actin. Show Answer Correct Answer: D) Cross-bridge attachment of myosin to actin. 24. A-joints are essential for all types of movements involving the bony part of the bodyR-locomotory movements are no exception to this 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: B) A&R both true, but R is not correct explanation of A. 25. What type of joint is found in the elbow? A) Saddle joint. B) Hinge joint. C) Pivot joint. D) Ball-and-socket joint. Show Answer Correct Answer: B) Hinge joint. 26. Tropomysin is moved by which of following proteins- A) Calmodulin. B) Troponin. C) Actin. D) Acetylcholine. Show Answer Correct Answer: B) Troponin. 27. What is the red colored oxygen storing pigment in muscles called? A) Myoglobin. B) Actinoglobin. C) Haemoglobin. D) Sarcoglobin. Show Answer Correct Answer: A) Myoglobin. 28. What is the inflammation of joints called? A) Osteoporosis. B) Gout. C) Arthritis. D) Tetany. Show Answer Correct Answer: C) Arthritis. 29. Which joint type is immovable? A) Cartilaginous joint. B) Hinge joint. C) Synovial joint. D) Fibrous joint. Show Answer Correct Answer: D) Fibrous joint. 30. Muscle immune to fatigue is A) Voluntary. B) Cardiac muscle. C) Striped muscle. D) None of these. Show Answer Correct Answer: B) Cardiac muscle. 31. Each actin is surrounded by ..... myosin filaments, while each myosin is surrounded by ..... actin filaments. A) 6, 3. B) 4, 2. C) 2, 4. D) 3, 6. Show Answer Correct Answer: D) 3, 6. 32. Myofibrils show alternate dark and light bands in- A) Cardiac muscles. B) Smooth muscles. C) Striped muscles. D) A and c. Show Answer Correct Answer: D) A and c. 33. Autoimmune disorder is A) Myasthenia Gravis. B) Tetany. C) Arthritis. D) Gout. Show Answer Correct Answer: C) Arthritis. ← PreviousRelated QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 20 Locomotion And Movement Quiz 1Class 11 Biology Chapter 20 Locomotion And Movement Quiz 2Class 11 Biology Chapter 20 Locomotion And Movement Quiz 3Class 11 Biology Chapter 20 Locomotion And Movement Quiz 4Class 11 Biology Chapter 20 Locomotion And Movement Quiz 5Class 11 Biology Chapter 1 The Living World QuizClass 11 Biology Chapter 10 Cell Cycle And Cell Division QuizClass 11 Biology Chapter 11 Transport In Plants Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books