This quiz works best with JavaScript enabled. Home > Class 11 > 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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Cardiac / heart muscles are- A) Striated and involuntary. B) Branched. C) Not fatigued. D) All. Show Answer Correct Answer: D) All. 2. A-Pectoral and Pelvic girdle bones help in the articulation of the upper and the lower limbs respectively with the appendicular skeleton. B-A cup shaped bone called patella cover the knee dorsally (knee cap). A) A and B both are correct. B) A and B both are incorrect. C) A is correct but B is incorrect. D) A is incorrect but B is correct. Show Answer Correct Answer: B) A and B both are incorrect. 3. How many pairs of ribs are present in the human body? A) 12. B) 24. C) 13. D) 15. Show Answer Correct Answer: A) 12. 4. What happens to the I-band during muscle contraction? A) It disappears. B) It increases in size. C) It decreases in size. D) It remains the same. Show Answer Correct Answer: C) It decreases in size. 5. Which of the following is a symptom of arthritis? A) Muscle cramps. B) Muscle weakness. C) Joint inflammation. D) Bone fractures. Show Answer Correct Answer: C) Joint inflammation. 6. How many bones are present in the human appendicular skeleton? A) 80. B) 120. C) 126. D) 206. Show Answer Correct Answer: C) 126. 7. Cranium of man is made up of A) 8 bones. B) 12 bones. C) 10 bones. D) 16 bones. Show Answer Correct Answer: A) 8 bones. 8. The scapula extends on the backside of the thorax between A) 2$^{nd}$ and 8$^{th}$ rib. B) 1$^{st}$ and 7$^{th}$ rib. C) 2$^{nd}$ and 7$^{th}$ rib. D) 3$^{rd}$ and 7$^{th}$ rib. Show Answer Correct Answer: C) 2$^{nd}$ and 7$^{th}$ rib. 9. How many total bones are in the adult human body? A) 210. B) 204. C) 206. D) 198. Show Answer Correct Answer: C) 206. 10. Ribs have two articulation surfaces on its dorsal end, hence called A) Dicondylic. B) Sarcomere. C) Bicondylic. D) Bicephalic. Show Answer Correct Answer: D) Bicephalic. 11. Study of muscle is called A) Osteology. B) Morphology. C) Arthrology. D) Myology. Show Answer Correct Answer: D) Myology. 12. S 1-Skull, vertebral column, ribs and sternum constitute the axial skeleton.S 2-Each sarcomere has a central 'A' band and two half 'I' bands on either side of it A) Both the statements are correct. B) Both the statements are incorrect. C) Only S1 is correct. D) Only S2 is correct. Show Answer Correct Answer: A) Both the statements are correct. 13. How many bones are in the human cranium? A) 10. B) 6. C) 12. D) 8. Show Answer Correct Answer: D) 8. 14. The joint between the adjacent vertebrae in the vertebral column- A) Fibrous joint. B) Cartilaginous joints. C) Synovial joined. D) None. Show Answer Correct Answer: B) Cartilaginous joints. 15. Which statement is not true to explain the leg movement. A) The tibialis contracts will bring the heel down to the ground. B) The biceps femoris relaxes cause the leg bend at the knee joint. C) The calf muscle contracts to lift the heel. D) The quadriceps femoris contracts to straighten the leg. Show Answer Correct Answer: B) The biceps femoris relaxes cause the leg bend at the knee joint. 16. Regulating proteins of muscles are: A) A-troponin. B) B-tropomyosin. C) Both a and b. D) Myofibrils. Show Answer Correct Answer: C) Both a and b. 17. In mammals, the number of cervical vertebra is A) 5. B) 7. C) 10. D) 12. Show Answer Correct Answer: B) 7. 18. Single sarcomere will contain: A) 1I + 1/2A + 1I. B) 1/2I +1A + 1/2I. C) 1I + 1A + 1I. D) NONE. Show Answer Correct Answer: B) 1/2I +1A + 1/2I. 19. 1-Each meromyosin has two important parts, a globular head with a short arm and a tail, called as the light meromyosin (LMM).2-A complex protein Troponin is distributed at irregular intervals on the tropomyosin. A) 1 and 2 both are correct. B) 1 and 2 both are incorrect. C) 1 is correct only. D) 2 is correct only. Show Answer Correct Answer: B) 1 and 2 both are incorrect. 20. When the circular muscle contract, the longitudinal muscle relax, the earthworm become A) Shorter and thinner. B) Shorter and thicker. C) Longer and thinner. D) Longer and thicker. Show Answer Correct Answer: C) Longer and thinner. 21. Which of the following is a characteristic of smooth muscle? A) Involuntary control. B) Voluntary control. C) Striated appearance. D) Both A and B. Show Answer Correct Answer: A) Involuntary control. 22. Which type of movement is exhibited by unicellular organisms like Amoeba? A) Amoeboid movement. B) Flagellar movement. C) Ciliary movement. D) Muscular movement. Show Answer Correct Answer: A) Amoeboid movement. 23. Total number of movable bones in human skull are A) 1. B) 4. C) 6. D) 7. Show Answer Correct Answer: A) 1. 24. Number of vertebrae in human skeleton is? A) 30. B) 32. C) 26. D) 35. Show Answer Correct Answer: C) 26. 25. Which muscle does not fatigue and possesses abundant blood supply during life span? A) Skeletal muscle. B) Smooth muscle. C) Cardiac muscle. D) Both B and C. Show Answer Correct Answer: D) Both B and C. ← 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 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