This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 20 Locomotion And Movement – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 20 Locomotion And Movement Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A-cardiac muscles are involuntary in natureR-nervous system does not control their activities directly 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: D) A&R both true, R is correct explanation of A. 2. A cup shaped bone that covers the knee ventrally is:- A) Stapes. B) Patella. C) Malleus. D) Incus. Show Answer Correct Answer: B) Patella. 3. 1-Thoracic vertebrae, ribs and sternum together form the thoracic cage .2-First vertebra is the axis and it articulates with the occipital condyles A) Both are correct. B) Both are incorrect. C) A is correct and R is incorrect. D) A is incorrect and R is correct. Show Answer Correct Answer: B) Both are incorrect. 4. Match the following bones with their total number .(a) Ear ossicles-(p) 8(b) Vertebral Column-(q) 26(C) Cranium-(r) 14(d) Tarsals-(s) 6 A) -(s)(b)-(p)(c)-(r)(d)-(p). B) -(s)(b)-(q)(c)-(p)(d)-(r). C) -(s)(b)-(p)(c)-(q)(d)-(r). D) -(p)(b)-(q)(c)-(r)(d)-(s). Show Answer Correct Answer: B) -(s)(b)-(q)(c)-(p)(d)-(r). 5. All the statements are incorrect except-1-Macrophages and leucocytes in blood exhibit amoeboid movement.2-Muscle is a specialised tissue of ectodermal origin.3-Cardiac muscle are voluntary in nature .4-Each skeletal muscle in our body is made of a number of fascia held together by fascicles. A) 2. B) 3. C) 4. D) 1. Show Answer Correct Answer: D) 1. 6. Anatomical unit of the skeletal muscle is: A) Sarcomere. B) Sarcolemma. C) Muscle Bundle. D) Muscle Fiber. Show Answer Correct Answer: A) Sarcomere. 7. Name of chest bone in axial skeleton of human body is A) Vertebrae. B) Sternum. C) Ulna. D) Ribs. Show Answer Correct Answer: B) Sternum. 8. Lumbar vertebra are found in A) Neck region. B) Abdominal region. C) Hip region. D) Thorax. Show Answer Correct Answer: B) Abdominal region. 9. What structure is the cardiac muscles? A) Striated. B) Non-striated. C) Voluntary. D) None of the above. Show Answer Correct Answer: A) Striated. 10. Which type of joint is present between malleus and incus:- A) Pivot. B) Ellipsoid. C) Condyloid. D) Hinge. Show Answer Correct Answer: D) Hinge. 11. One myosin filament in the myofibril of skeletal muscle fibres is surrounded by how many actin filaments- A) 8. B) 2. C) 6. D) 4. Show Answer Correct Answer: C) 6. 12. Biceps are attached with- A) Radius. B) Ulna. C) Femur. D) Humerus. Show Answer Correct Answer: D) Humerus. 13. Identify the joint which is not a synovial joint A) Hinge joint. B) Saddle joint. C) Gliding joint. D) Sutures. Show Answer Correct Answer: D) Sutures. 14. A-vertebral column protects the spinal cord onlyB-sternum is a flat triangular bone located on the ventral midline of thorax 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: D) Both A&R are false. 15. The action potential that triggers a muscle contraction travels deep within the muscle cell by means of- A) Sarcoplasmic reticulum. B) Transverse tubules. C) Synapse. D) Motor end plates. Show Answer Correct Answer: B) Transverse tubules. 16. S1-The central part of thick filament, not overlapped by thin filaments is called the 'H' zoneS2-In White fibres number of mitochondria is very high, but the amount of sarcoplasmic reticulum is less.S3-The 'A' and 'I' bands are arranged alternately throughout the length of the myofibrils. A) S 1 and S 2 both are correct. B) S 2 and S 3 both are correct. C) All are correct. D) S 1 and S 3 both are correct. Show Answer Correct Answer: D) S 1 and S 3 both are correct. 17. What type of joint is the knee classified as? A) Gliding joint. B) Pivot joint. C) Hinge joint. D) Ball-and-socket joint. Show Answer Correct Answer: C) Hinge joint. 18. Which of the following statements about the skeletal muscles is correct? A) They are striated muscles. B) They are voluntary muscles. C) They are primarily involved in locomotory actions. D) All. Show Answer Correct Answer: D) All. 19. A-a cup shaped bone called patella covers the knees dorsallyR-it is called knee cap 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: D) Both A&R are false. 20. A motor unit is formed by A) A mixed neuron along with the muscle fibres. B) A motor neuron along with the muscle fibres connected to it. C) A sensory neuron along with the muscle fibres connected to it. D) A sensory neuron, motor neuron and muscle fibres connected to it. Show Answer Correct Answer: B) A motor neuron along with the muscle fibres connected to it. 21. A-Cartilage has a very hard matrix due to calcium salts in it .B-Axial skeleton and Appendicular skeleton consist of 80 and 126 bones respectively. A) A is correct only. B) B is correct only. C) A and B both are correct. D) A and B both are incorrect. Show Answer Correct Answer: B) B is correct only. 22. A-mechanism of muscle contraction is best explained by sliding filament theoryR-it says that contraction of muscle fibre take place by sliding thick filaments over thin filaments 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. 23. What is the primary cause of muscle fatigue? A) Protein breakdown. B) Calcium deficiency. C) Oxygen depletion. D) Lactic acid accumulation. Show Answer Correct Answer: D) Lactic acid accumulation. 24. Select the true statement(s)- A) A-band is present in the middle of sarcomere. B) H-zone is present in the middle of A-band. C) M-line is present in the middle of H-zone. D) All of the above. Show Answer Correct Answer: D) All of the above. 25. Which of the following cells exhibit amoeboid movement? A) Macrophages. B) Leucocytes. C) RBC. D) Both (a) and (b). Show Answer Correct Answer: D) Both (a) and (b). ← 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 5Class 11 Biology Chapter 20 Locomotion And Movement Quiz 6Class 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