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Class 11 Biology Chapter 20 Locomotion And Movement Quiz 1 (60 MCQs)

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1. Which of the following muscular disorders is inherited?
2. Hinge joint is present between
3. Which pair of ribs do not articulate directly with the sternum but attach with hyaline cartilage of other ribs?
4. A-A motor neuron along with the muscle fibres connected to it constitute a motor unit. B-A neural signal reaching Neuromuscular junction releases Acetyl choline which generates an action potential in the sarcolemma.
5. Stimulation of a muscle fiber by a motor neuron occurs at:
6. Which of the following disorder is inherited?
7. An acromian process is characteristically found in
8. What is the main characteristic of ball-and-socket joints?
9. The macrophages in human body exhibit
10. S 1-Each muscle fibre contains a number of muscle bundles.S 2-Hydra can use its tentacles for movement as well as for locomotion.
11. Gastrocnemium is a muscle of-
12. ATPase enzyme for muscle contraction is located in
13. Number of bones in cranium, face, hyoid, and middle ear is
14. Saddle joint is present-
15. Which is the only movable skull bone other than auditory ossicles?
16. Muscles are classified into Skeletal, Visceral and Cardiac on the basis of-
17. The number of vertebrae present in cervical, thoracic, sacral, lumbar and coccyx regions respectively are
18. Which of the following is not a paired bone?
19. Which one is a bone of Fore limb?
20. One of the following is called hip-bone
21. What is the cause of muscular dystrophy?
22. How much percentage of a human adult is contributed by muscles?
23. Action potentials in the sarcolemma of muscle is generated by:-
24. According to Sliding filament theory of muscle contraction, the filament that move to shorten a muscle are?
25. Which of the following ribs are not connected ventrally with the sternum and are called as floating ribs
26. Joints between carpals are-
27. Which joint type is characterized by a hinge-like movement?
28. What is the primary function of the sarcoplasmic reticulum in muscle fibers?
29. 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.
30. (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
31. Streaming of cytoplasm/ cyclosis is seen in-
32. Name the bone which makes the floor of the buccal cavity?
33. Which of the following is the hardest connective tissue?
34. 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)
35. All of the following changes occur during contraction of a muscle fibre except one:
36. Which of the following muscles is involuntary?
37. Which of the following is NOT a type of muscle in the human body?
38. All of the following events occur during muscle contraction except
39. The pivot joint between atlas and axis is a type of (NEET 2017)
40. According to the sliding filament theory-
41. Upon stimulation of skeletal muscles, calcium ions are immediately made available from
42. What type of joint is the hip joint?
43. The skeletal muscle can only contract and relax.
44. A-fatigue is inability of muscles to relaxR-this is due to the fact that they contract and relax as a unit
45. 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
46. A motor unit is best described as-
47. The region between the ends of the A-bands of 2-adjoining sarcomeres is called-
48. Each muscle fiber is directly surrounded by connective tissue called the .....
49. Actin binding sites are located in?
50. What is the role of myoglobin in muscle tissue?
51. Energy stored in liver and muscle in the form of
52. How many bones make up the human skeleton?
53. The coordinated movement of flagella in respiratory tract helps in clearing the mucus
54. What type of joint is found between the phalanges?
55. The lactic acid generated during muscle contraction is converted to glycogen in
56. S 1-Joints are essential for all types of movements involving the bony parts of the body.S 2-The bones of the ribs along with their girdles constitute the appendicular skeleton.
57. How many tarsels are present in the human body
58. (1) Sarcomere is the anatomical unit of muscle. (2) Ca++ activates actin which binds to the myosin head to form a cross bridge.(3) Myosin head contains ATPase and has ATP binding sites and active sites for actin.
59. Anaerobic work becomes painful due to accumulation of
60. Assertion-First seven pairs of ribs are called true ribs.Reason-Dorsally, they are attached to the thoracic vertebrae and ventrally connected to the sternum with the help of hyaline cartilage
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