This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 20 Locomotion And Movement – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 20 Locomotion And Movement Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In human body, which one of the following is anatomically correct? A) Collar bones-3 pairs. B) Salivary glands-1 pair. C) Cranial nerves-10 pairs. D) Floating ribs-2 pairs. Show Answer Correct Answer: D) Floating ribs-2 pairs. 2. Relaxation of muscle is due to- A) Pumping of Ca$^{+2}$ into sarcoplasmic cisternae. B) Presence of ATP. C) Confirmational change in troponin and masking of actin filaments. D) A and c. Show Answer Correct Answer: D) A and c. 3. Cross arm in myosin contains: A) Only globular head. B) A-globular head+short arm. C) C-HMM. D) Both b and c. Show Answer Correct Answer: D) Both b and c. 4. Red muscle fiber is rich in: A) Mitochondria. B) Golgi bodies. C) Lysosome. D) Ribosome. Show Answer Correct Answer: A) Mitochondria. 5. The functional unit of contractile system of a striated muscle is called A) Sarcomere. B) Z line. C) Myofibril. D) I zone. Show Answer Correct Answer: A) Sarcomere. 6. Which of these are not a property of muscles? A) Excitability. B) Extensibility. C) Relaxability. D) Elasticity. Show Answer Correct Answer: C) Relaxability. 7. A-tetany is the rapid spasm in muscles due to low Ca2+ ions in bloodR-spasm is also called wild contractions 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. 8. Assertion-Skeletal muscles are also called straited muscles.Reason-They have a striped appearance under the microscope A) Both A are R are true and R is the correct explanation of A. B) Both A are R are true and R is not the correct explanation of A. C) A is true and Reason is false. D) A is false and Reason is true. Show Answer Correct Answer: A) Both A are R are true and R is the correct explanation of A. 9. Which protozoan uses flagellar movement for locomotion? A) Dinoflagellate. B) Slime moulds. C) Euglena. D) None of the above. Show Answer Correct Answer: C) Euglena. 10. Which is part of pectoral girdle? A) Glenoid cavity. B) Sternum. C) Ilium. D) Acetabulum. Show Answer Correct Answer: A) Glenoid cavity. 11. A-there is similarities between the locomotion of unicellular organisms and multicellular organisms.R-ciliary, flagellar and ameboid movements occur in unicellular organisms 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. 12. Which is the smallest one? A) Muscle fibre. B) Myofibril. C) Actin. D) Sarcomere. Show Answer Correct Answer: C) Actin. 13. The arthritis is disease caused by wearing of the A) Bones. B) Muscles. C) Tendon. D) Cartilage. Show Answer Correct Answer: D) Cartilage. 14. Rib cage is formed by A) Pectoral girdle, sternum, ribs. B) Thoracic vetebrae, ribs and sternum. C) Lumbar vertebrae, ribs and Sternum. D) Pelvic girdle, sternum and ribs. Show Answer Correct Answer: B) Thoracic vetebrae, ribs and sternum. 15. Which of the following is a characteristic of fibrous joints? A) Are found in the shoulder. B) Allow movement. C) Do not allow movement. D) Are found in the knee. Show Answer Correct Answer: C) Do not allow movement. 16. The central part of the thick filament is called the "M ZONE" A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 17. How many vertebrae are present in a vertebral column of adult human? A) 26. B) 30. C) 20. D) 14. Show Answer Correct Answer: A) 26. 18. Glenoid cavity is associated with A) Pelvic girdle. B) Coracoid. C) Clavicle. D) Scapula. Show Answer Correct Answer: D) Scapula. 19. Which of the following statements about visceral muscles is correct? A) They are non-striated muscles ( smooth muscles). B) They are involuntary muscles. C) They have various functions. D) All. Show Answer Correct Answer: D) All. 20. The H-zone in the skeltal muscle fibres is due to A) Central gap between Myosin FIlaments in the A band. B) Absence of myofibrils in the the central portion of A-band. C) Extension of myosin filament in the centre portion of A band. D) Cental gap between actin filaments extensing through myosin filaments in the A band. Show Answer Correct Answer: D) Cental gap between actin filaments extensing through myosin filaments in the A band. 21. Sarcomere is the area between- A) 2 H-zones. B) 2 Z-lines. C) 2 M-lines. D) 2 A-bands. Show Answer Correct Answer: B) 2 Z-lines. 22. What is the primary function of tendons in the muscular system? A) To protect organs. B) To facilitate movement. C) To store energy. D) To connect muscles to bones. Show Answer Correct Answer: D) To connect muscles to bones. 23. Human cranium is made up of ..... bones A) 8. B) 22. C) 7. D) 14. Show Answer Correct Answer: A) 8. 24. Which are involved in muscle contraction? A) Ca$^{2+}$ and Mg$^{2+}$. B) Ca$^{2+}$ and Na$^{+}$. C) Na$^{+}$ and K$^{+}$. D) Mg$^{2+ }$and K$^{+}$. Show Answer Correct Answer: A) Ca$^{2+}$ and Mg$^{2+}$. 25. Dorsally, they are attached to the thoracic vertebrae and ventrally connected to the sternum with the help of ..... cartilage. A) Elastic cartilage. B) Hyaline cartilage. C) White fibrous cartilage. D) Calcified cartilage. Show Answer Correct Answer: B) Hyaline cartilage. ← PreviousNext →Related 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 6Class 11 Biology Chapter 20 Locomotion And Movement Quiz 7Class 11 Biology Chapter 20 Locomotion And Movement Quiz 8Class 11 Biology Chapter 20 Locomotion And Movement Quiz 9Class 11 Biology Chapter 20 Locomotion And Movement Quiz 10Class 11 Biology Chapter 20 Locomotion And Movement Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books