This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 20 Locomotion And Movement – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 20 Locomotion And Movement Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is the best distinguishing feature of thoriac vertebrae? A) They have larger transverse process. B) Their spinous process is directed posteriorly. C) They articulate with the ribs. D) Absence of vertebral transverse foramen. Show Answer Correct Answer: C) They articulate with the ribs. 2. Pneumatic bones are found in A) House lizard. B) Pigeon. C) Flying fish. D) Frogs tadpole. Show Answer Correct Answer: B) Pigeon. 3. Identify which of the following is not a synovial joint A) Joint in neck region. B) Joint in cranium bone. C) Joint in wrist region. D) Joint in elbow region. Show Answer Correct Answer: B) Joint in cranium bone. 4. A-globular head is an active ATPase enzymeR-HMM has binding sites for ATP and active sites for actin 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) Both A&R are false. D) A is true but R is false. Show Answer Correct Answer: A) A&R both true, R is correct explanation of A. 5. The joint between Temporal and Parietal bone is? A) Fibrous joint. B) Cartilagenous joint. C) Pivot joint. D) Saddle joint. Show Answer Correct Answer: A) Fibrous joint. 6. Which protein is primarily responsible for muscle contraction? A) Troponin. B) Actin. C) Myosin. D) Tropomyosin. Show Answer Correct Answer: C) Myosin. 7. What type of joint is found between the atlas and axis vertebrae? A) Gliding joint. B) Hinge joint. C) Pivot joint. D) Ball and socket joint. Show Answer Correct Answer: C) Pivot joint. 8. Which of the following does not belong with the others? A) Multinucleated. B) Skeletal. C) Striated. D) Involuntary. Show Answer Correct Answer: D) Involuntary. 9. A-biceps and triceps are called antagonistic musclesR-this is because 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: C) A is true but R is false. 10. Ca$^{+2}$ bind ..... in the skeletal muscles and leads to exposure of the binding site for ..... on the filament ..... A) Troponin, myosin, actin. B) Troponin, actin, relaxin. C) Actin, myosin, troponin. D) Tropomysin, myosin, actin. Show Answer Correct Answer: A) Troponin, myosin, actin. 11. Which statement is correct for muscle contraction? A) Length of H line decreases. B) Length of A band remains constant. C) Length of I band increases. D) Length of two Z lines increases. Show Answer Correct Answer: B) Length of A band remains constant. 12. Name the muscle possesses multinucleus condition (Syncytium)? A) Skeletal muscle. B) Smooth muscle. C) Cardiac muscle. D) None of the above. Show Answer Correct Answer: C) Cardiac muscle. 13. A-fibrous joints does not play any significant role in locomotionR-fibrous joints does not have fluid filled cavity between articulating surfaces of two bones A) A&R both true, R is correct explanation of A. B) A is true but R is false. C) A&R both true, but R is not correct explanation of A. D) Both A&R are false. Show Answer Correct Answer: A) A&R both true, R is correct explanation of A. 14. Select the in correctly matched pair (P) Mysthenia gravis-inheretid disorder(Q) Tetany-High Ca2+ in ECF (R) Muscular Dystrophy-genetic disorder(S) Gout-sodium oxalate crystals A) (P). B) (Q). C) (R). D) (S). Show Answer Correct Answer: C) (R). 15. Length of which zone/band increases during complete muscular contraction: A) H zone. B) A band. C) O zone. D) I band. Show Answer Correct Answer: C) O zone. 16. Of what origin is a muscle? A) Mesodermal. B) Ectodermal. C) Endodermal. D) All of the above. Show Answer Correct Answer: A) Mesodermal. 17. Progressive degeneration of skeletal muscle mostly due to genetic disorder is called:- A) Myasthenia gravis. B) Muscular dystrophy. C) Tetany. D) Gout. Show Answer Correct Answer: B) Muscular dystrophy. 18. Which of the following is the first vertebrae? A) Axis. B) Atlas. C) Sacrum. D) Coccyx. Show Answer Correct Answer: B) Atlas. 19. Motor end plate is a- A) Neuromuscular junction. B) Plate of motor neuron. C) Dendron of motor neuron. D) Gradient of proton motive force. Show Answer Correct Answer: A) Neuromuscular junction. 20. What will happen if ligaments are cut or broken A) Bones will move freely at joints. B) No movement at joints. C) Bones will become unfix. D) Bones will become fixed. Show Answer Correct Answer: C) Bones will become unfix. 21. Which structure is responsible for the contraction of skeletal muscles? A) Sarcoplasmic reticulum. B) Sarcolemma. C) Myofibrils. D) Z line. Show Answer Correct Answer: C) Myofibrils. 22. S 1-A motor neuron along with the muscle fibres connected to it constitute a Neuromuscular junction.S 2-Utilising the energy from ATP hydrolysis, the myosin head now binds to the exposed active sites on actin to form a cross bridge A) Both the statements are correct. B) Both the statements are incorrect. C) Only S 1 is correct. D) Only S 2 is correct. Show Answer Correct Answer: D) Only S 2 is correct. 23. Parts of axial skeleton includes A) Skull and hyoid bone. B) Vertebral column. C) Middle ear ossicles and chest. D) All of above. Show Answer Correct Answer: D) All of above. 24. A-muscle contraction force increases with rise in strength of stimulusR-this is due to increased contraction of individual muscle fibres with increase in stimulus strength A) A&R both true, R is correct explanation of A. B) Both A&R are false. C) A&R both true, but R is not correct explanation of A. D) A is true but R is false. Show Answer Correct Answer: D) A is true but R is false. 25. What is the main difference between red fibres and white fibres? A) Presence of Mitochondria. B) Content of Myoglobin. C) Oxygen usage and content. D) No difference is present. Show Answer Correct Answer: B) Content of Myoglobin. ← 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 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