This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 20 Locomotion And Movement – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 20 Locomotion And Movement Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Joints between carpals are- A) Fibrous joints. B) Cartilagenous joint. C) Angular joints. D) Gliding joints. Show Answer Correct Answer: D) Gliding joints. 2. Human skull is- A) Dicondylic. B) Monocondylic. C) Procoelous. D) Hetercoelous. Show Answer Correct Answer: A) Dicondylic. 3. Which joint type is characterized by a hinge-like movement? A) Ball-and-socket joint. B) Hinge joint. C) Saddle joint. D) Pivot joint. Show Answer Correct Answer: B) Hinge joint. 4. What is the primary function of the sarcoplasmic reticulum in muscle fibers? A) To store calcium ions. B) To produce energy. C) To contract muscles. D) To transport oxygen. Show Answer Correct Answer: A) To store calcium ions. 5. What type of joint is found in the shoulder? A) Ball-and-socket joint. B) Hinge joint. C) Pivot joint. D) Saddle joint. Show Answer Correct Answer: A) Ball-and-socket joint. 6. S 1-At the point of fusion of the above bones is a cavity called acromion to which the thigh bone articulates.S 2-. Each clavicle is a long slender bone with single curvature. 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: B) Both the statements are incorrect. 7. (1) Cranial bones are 8 in number.(2) Total bones in Pectoral girdle are 6.(3) In each half 6 ear ossicles are present. (4) Last 2 pairs (11th and 12th) of ribs are not connected ventrally A) 1 and 3 are correct. B) All are correct. C) 2 and 3 are correct. D) 1 and 4 are correct. Show Answer Correct Answer: D) 1 and 4 are correct. 8. Streaming of cytoplasm/ cyclosis is seen in- A) Amoeba. B) Macrophages. C) Leucocytes. D) All of these. Show Answer Correct Answer: D) All of these. 9. Name the bone which makes the floor of the buccal cavity? A) Hyoid bone. B) Vomer. C) Mandible F. D) Frontal. Show Answer Correct Answer: C) Mandible F. 10. Which of the following is the hardest connective tissue? A) Blood. B) Cartilage. C) Areolar connective tissue. D) Bone. Show Answer Correct Answer: D) Bone. 11. A-the phase of muscle contraction occurs when myosin binds and releases actinR-muscle contraction is initiated by a signal sent by the PNS via motor neuron(AIIMS 2016) A) A&R both true, but R is not correct explanation of A. B) A&R both true, R is 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. 12. All of the following changes occur during contraction of a muscle fibre except one: A) Length of actin and myosin remains same. B) Width of H zone decreases. C) Width of A band & I band remains same. D) Actin filament slides over myosin filament. Show Answer Correct Answer: C) Width of A band & I band remains same. 13. Which of the following muscles is involuntary? A) Smooth muscle. B) Cardiac muscle. C) Both A and B. D) None of the above. Show Answer Correct Answer: C) Both A and B. 14. Which of the following is NOT a type of muscle in the human body? A) Skeletal muscle. B) Cardiac muscle. C) Visceral muscle. D) Epithelial muscle. Show Answer Correct Answer: D) Epithelial muscle. 15. All of the following events occur during muscle contraction except A) Sliding of thin filaments over thick filaments. B) Increased Ca2+ levels in the sarcoplasm. C) Reduction in length of A-band. D) Shortening of the sarcomere. Show Answer Correct Answer: C) Reduction in length of A-band. 16. The pivot joint between atlas and axis is a type of (NEET 2017) A) Fibrous joint. B) Cartilaginous joint. C) Synovial joint. D) Cartilaginous joint. Show Answer Correct Answer: C) Synovial joint. 17. According to the sliding filament theory- A) Actin (thin filament) moves past myosin (thick filament). B) Myosin moves past actin. C) Both myosin and actin move past each other. D) None of these is correct. Show Answer Correct Answer: A) Actin (thin filament) moves past myosin (thick filament). 18. Upon stimulation of skeletal muscles, calcium ions are immediately made available from A) Blood. B) Endoplasmic reticulum. C) Sarcoplasmic reticulum. D) Sarcosome. Show Answer Correct Answer: C) Sarcoplasmic reticulum. 19. What type of joint is the hip joint? A) Saddle joint. B) Hinge joint. C) Pivot joint. D) Ball-and-socket joint. Show Answer Correct Answer: D) Ball-and-socket joint. 20. The skeletal muscle can only contract and relax. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 21. A-fatigue is inability of muscles to relaxR-this is due to the fact that they contract and relax as a unit 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. 22. S 1-Each myofibril contains many serially arranged units called sarcomere which are the functional units.S 2-Cross bridges are broken and the muscles relax A) Both the statement are correct. B) Both the statement are incorrect. C) S 1 is correct only. D) S 2 is correct only. Show Answer Correct Answer: A) Both the statement are correct. 23. A motor unit is best described as- A) All the nerve fibres and muscle fibres in a single muscle bundle. B) One muscle fibre and its single nerve fibre. C) A single motor neuron and all the muscle fibres that it innervates. D) It is the neuron which carries the messsage from muscle to CNS. Show Answer Correct Answer: C) A single motor neuron and all the muscle fibres that it innervates. 24. The region between the ends of the A-bands of 2-adjoining sarcomeres is called- A) The Z-band. B) The H-zone. C) The T-tubule. D) The I-band. Show Answer Correct Answer: D) The I-band. 25. Each muscle fiber is directly surrounded by connective tissue called the ..... A) Perimysium. B) Fascia. C) Endomysium. D) Epimysium. Show Answer Correct Answer: C) Endomysium. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 20 Locomotion And Movement Quiz 1Class 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 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