This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 20 Locomotion And Movement – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 20 Locomotion And Movement Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following muscular disorders is inherited? A) Tetany. B) Muscular dystrophy. C) Myasthenia gravis. D) Botulism. Show Answer Correct Answer: B) Muscular dystrophy. 2. Hinge joint is present between A) Humerus and Radio-ulna. B) Femur and pelvic girdle. C) Femur and Acetabulum. D) Humerus and Pectoral girdle. Show Answer Correct Answer: A) Humerus and Radio-ulna. 3. Which pair of ribs do not articulate directly with the sternum but attach with hyaline cartilage of other ribs? A) 6th, 7th 8th. B) 8th, 9th 10th. C) 7th, 8th, 9th. D) 10 11 12th. Show Answer Correct Answer: B) 8th, 9th 10th. 4. A-A motor neuron along with the muscle fibres connected to it constitute a motor unit. B-A neural signal reaching Neuromuscular junction releases Acetyl choline which generates an action potential in the sarcolemma. A) A and B both are correct. B) A and B both are incorrect. C) A is correct only. D) B is correct only. Show Answer Correct Answer: A) A and B both are correct. 5. Stimulation of a muscle fiber by a motor neuron occurs at: A) The Myofibril. B) The Transverse Tubules. C) The Sarcoplasmic Reticulum. D) The Neuro-Muscular Junction. Show Answer Correct Answer: D) The Neuro-Muscular Junction. 6. Which of the following disorder is inherited? A) Tetany. B) Myasthemia gravis. C) Muscular dystrophy. D) Gout. Show Answer Correct Answer: C) Muscular dystrophy. 7. An acromian process is characteristically found in A) Pelvic girdle of mammals. B) Pectoral girdle of mammals. C) Skull of frog. D) Sperm of mammals. Show Answer Correct Answer: B) Pectoral girdle of mammals. 8. What is the main characteristic of ball-and-socket joints? A) They allow for rotational movement in multiple axes. B) They allow for limited sliding motion only. C) They provide stability without any movement. D) They restrict movement to a single plane. Show Answer Correct Answer: A) They allow for rotational movement in multiple axes. 9. The macrophages in human body exhibit A) Ciliary movement. B) Amoeboid movement. C) No movement. D) Movement with the blood flow. Show Answer Correct Answer: B) Amoeboid movement. 10. S 1-Each muscle fibre contains a number of muscle bundles.S 2-Hydra can use its tentacles for movement as well as for locomotion. A) S 1 and S 2 are correct. B) S 1 and S 2 are incorrect. C) S1 is correct only. D) S2 is correct only. Show Answer Correct Answer: D) S2 is correct only. 11. Gastrocnemium is a muscle of- A) Fore limb. B) Thigh. C) Stomach. D) Shank. Show Answer Correct Answer: D) Shank. 12. ATPase enzyme for muscle contraction is located in A) Myosin. B) Troponin. C) F-Actin. D) G-Actin. Show Answer Correct Answer: A) Myosin. 13. Number of bones in cranium, face, hyoid, and middle ear is A) 14, 8, 1 and 3. B) 8, 14, 1 and 3. C) 3, 8, 14 and 1. D) 14, 8, 3 and 1. Show Answer Correct Answer: B) 8, 14, 1 and 3. 14. Saddle joint is present- A) Between carpals. B) Between Humerus and acromion process. C) Between carpal and metacarpal of thumb. D) Elbow. Show Answer Correct Answer: C) Between carpal and metacarpal of thumb. 15. Which is the only movable skull bone other than auditory ossicles? A) Maxillae. B) Mandible. C) Inferior nasal conchae. D) Zygomatic. Show Answer Correct Answer: B) Mandible. 16. Muscles are classified into Skeletal, Visceral and Cardiac on the basis of- A) Appearance. B) Location. C) Nature of regulation. D) Source of Calcium ion. Show Answer Correct Answer: B) Location. 17. The number of vertebrae present in cervical, thoracic, sacral, lumbar and coccyx regions respectively are A) 7, 12, 5, 1, 1. B) 12, 7, 4, 1, 1. C) 7, 12, 1, 5, 1. D) 7, 12, 1, 5, 1. Show Answer Correct Answer: C) 7, 12, 1, 5, 1. 18. Which of the following is not a paired bone? A) Patella. B) Hyoid. C) Parietal. D) Scapula. Show Answer Correct Answer: B) Hyoid. 19. Which one is a bone of Fore limb? A) Humerus. B) Femur. C) Tibia. D) FIbula. Show Answer Correct Answer: A) Humerus. 20. One of the following is called hip-bone A) Innominate. B) Scapula. C) Manubrium. D) Coracoid. Show Answer Correct Answer: A) Innominate. 21. What is the cause of muscular dystrophy? A) Decreased bone mass. B) Decreased levels of estrogen. C) Genetic disorder. D) Low Ca$^{2+}$ in body fluid. Show Answer Correct Answer: C) Genetic disorder. 22. How much percentage of a human adult is contributed by muscles? A) 20-30. B) 40-50. C) 30-40. D) 60-70. Show Answer Correct Answer: B) 40-50. 23. Action potentials in the sarcolemma of muscle is generated by:- A) Neuro inhibitors. B) Acetylcholine. C) Methylcholine. D) Ethylcholine. Show Answer Correct Answer: B) Acetylcholine. 24. According to Sliding filament theory of muscle contraction, the filament that move to shorten a muscle are? A) Myosin. B) Actin. C) Collagen. D) Creatine phosphate. Show Answer Correct Answer: B) Actin. 25. Which of the following ribs are not connected ventrally with the sternum and are called as floating ribs A) First five pairs. B) 8$^{th}$, 9$^{th}$ and 10$^{th}$ pair. C) 11$^{th}$ and 12$^{th}$ pair. D) 7$^{th}$, 8$^{th}$ and 9$^{th}$ pair. Show Answer Correct Answer: C) 11$^{th}$ and 12$^{th}$ pair. 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