Tiêu đề 20. Locomotion and Movement .pdf ✅

FACT/DEFINITION TYPE QUESTIONS 1. The macrophages in human body exhibit (a) ciliary movement (b) amoeboid movement (c) no movement (d) movement with the blood flow only 2. Striated muscle fibres are found in (a) urinary bladder (b) lungs (c) gall bladder (d) leg muscles 3. Smooth muscle is (a) found in walls of heart only. (b) found in the walls of all the hollow organs except heart. (c) attached to the bones only. (d) found only in the walls of alimentary canal. 4. Cardiac muscles are different from that of skeletal muscles as the former are (a) striated but involuntary. (b) non striated and involuntary. (c) smooth or unstriated. (d) voluntary in action. 5. Striations in the striated muscles are due to (a) absence of myofilaments. (b) presence of myofilaments. (c) specialized arrangement of myofilaments. (d) projections of myosin. 6. Which set clearly identify striated muscles? (a) Cylindrical, Syncytial and Unbranched (b) Spindle, Unbranched and Uninucleated (c) Cylindrical, Striped and Nucleated (d) Cylindrical, Striped and Branched 7. Actin protein occurs in which of the following two forms ? (a) Polymeric F- actin and monomeric G- actin (b) Monomeric F- actin and polymeric G-actin (c) The tail and a head (d) F-actin and G- actin, but both globular. 8. Anisotropic band is (a) thick and dark (b) thin and dark (c) thick and light (d) thin and light 9. A-band of the myofibril contains (a) only thick filaments (b) only thin filaments (c) both thick and thin filaments (d) no filaments 10. Troponin (a) produces sliding movement of microtubules (b) contains globular head (c) binding to Ca+2 produces skeletal muscle contraction. (d) covers the active site of actin. 11. During muscle contraction in humans the (a) actin filaments shorten. (b) sarcomere does not shorten. (c) A-band remain same. (d) A, H and I bands shorten. 12. A sarcomere is best described as a (a) movable structural unit within a myofibril bounded by H zones. (b) fixed structural unit within a myofibril bounded by Z lines. (c) fixed structural unit within a myofibril bounded by A bands. (d) movable structural unit within a myofibril bounded by Z lines. 13. Which muscle protein acts as ATPase? (a) Actin (b) Troponin (c) Myosin (d) Tropomyosin 14. During resting stage the binding site of actin for myosin remains masked by (a) troponin (b) G-actin (c) tropomyosin (d) meromyosin 15. Which of the following is the store house of calcium in muscles? (a) Sarcosome (b) Sarcoplasmic reticulum (c) Creatine phosphate (d) Sarcomere Chapter 20 Gj^jhjodji\i_ Hjq`h`io
Locomotion and Movement 171 16. Red muscle fibres are rich in (a) golgi bodies (b) mitochondria (c) lysosomes (d) ribosomes 17. During fatigue (a) muscles cannot relax. (b) muscles fail to be stimulated. (c) blood supply to muscles stops. (d) nerve supply to muscles become inactive. 18. The axon terminals of a nerve cell and the sarcolemma of a skeletal muscle cell join at the_______ (a) motor unit (b) synaptic cleft (c) action potential (d) neuromuscular junction 19. In mammals the lower jaw is made of (a) maxilla (b) dentary (c) mandible (d) ethmoid 20. Hyoid bone is located (a) at the top of the buccal cavity. (b) at the floor of the buccal cavity. (c) in front of the skull. (d) behind the skull. 21. Which of the following is a single U shaped bone, present at the base of the buccal cavity and it is also included in the skull? (a) Hyoid (b) Malleus (c) Sacrum (d) Scapula 22. Which of the following is not part of axial skeleton? (a) Sacrum (b) Sternum (c) Mandible (d) Humerus 23. The vertebral formula of human adult is (a) C7 T12L5 S5Cd1 (b) C7 T12L 5S5Cd5 (c) C7 T12L5 S5Cd4 (d) C7 T12L5 S4Cd4 24. Part of the body having a single pair of bones is called (a) pelvic girdle (b) external ear (c) wrist (d) lower jaw 25. Which of the following vertebrae are fused? (a) Cervical (b) Sacral (c) Lumber (d) Thoracic 26. Glenoid cavity is found in (a) pelvic girdle (b) skull (c) pectoral girdle (d) sternum 27. Function of long bones in adult mammals is to provide (a) support only. (b) support and produce RBCs only. (c) support and produce WBCs only. (d) support and produce RBCs and WBCs. 28. Number of floating ribs in human body is (a) two pairs (b) three pairs (c) five pairs (d) six pairs 29. A cup shaped cavity for articulation of femur head is (a) acetabulum (b) glenoid cavity (c) sigmoid notch (d) obturator foramen 30. Elbow joint is an example of (a) hinge joint (b) gliding joint (c) ball and socket joint (d) pivot joint 31. In humans, coccyx is formed by the fusion of (a) 3 vertebra (b) 4 vertebra (c) 5 vertebra (d) 6 vertebra 32. An example of gliding joint is (a) humerus and glenoid cavity (b) femur and tibio-fibula (c) occipital condyle and odontoid process (d) zygapophyses of adjacent vertebrae 33. Identify the joint between sternum and the ribs in humans. (a) Fibrous joint (b) Gliding joint (c) Cartilaginous joint (d) Angular joint 34. The joint in our neck which allows us to rotate our head left to right is (a) pivot joint (b) hinge joint (c) saddle joint (d) ellipsoid joint 35. Accumulation of uric acid crystals in the synovial joint causes (a) rheumatoidal arthritis (b) gout (c) osteoarthritis (d) muscular dystrophy 36. Which of the following is an autoimmune disorder ? (a) Myasthenia gravis (b) Osteoporosis (c) Muscular dystrophy (d) Gout STATEMENT TYPE QUESTIONS 37. Which of the following statement is incorrect ? (a) All movements lead to locomotion. (b) Ciliary movement help in passage of ova through female reproductive tract. (c) Microfilaments are involved in amoeboid movement. (d) In Paramecium, the cilia help in movement of food through cytopharynx and in locomotion as well. 38. Which of the following is not the feature of red muscle fibres? (a) They have plenty of mitochondria. (b) They have high content of myoglobin. (c) They have high amount of sarcoplasmic reticulum. (d) They are called aerobic muscles. EduHulk 315
172 Biology 39. What is not true about human skull? (a) It is dicondylic. (b) It includes 6 ear ossicles. (c) It includes 14 facial bones. (d) Hyoid is not included in skull bones. 40. Which of the following statement is correct? (a) All striated muscles are voluntary. (b) Visceral muscles are faintly striated. (c) Cardiac muscles are not striated. (d) All non-striated muscles are involuntary. 41. Read the following statements (A to D) and select the one option that contains both correct statements. A. Z-line is present in the centre of the light band. B. Thin filaments are firmly attached to the M-line. C. The central part of thick filaments, not overlapped by thin filaments is called Z-band. D. Light band contains only thin filaments. (a) A and D (b) B and C (c) A and C (d) B and D 42. During muscle contraction. (a) chemical energy is changed to electrical energy. (b) mechanical energy is changed to chemical energy. (c) chemical energy is changed to physical energy. (d) chemical energy is changed to mechanical energy. 43. Contractile tissues have the following features. (i) They are mesodermal in origin. (ii) They contain stretch receptors. (iii) Rhythmic contractions are seen in them. (iv) They do not fatigue during the life of the animal. Which of the above are characteristics of sphincters? (a) Only (i), (iii) and (iv) (b) Only (i), (ii) and (iii) (c) Only (i), (ii) and (iv) (d) All of these 44. Which one of the following is the correct description of certain part of a normal human skeleton? (a) Parietal bone and the temporal bone of the skull are joined by fibrous joint. (b) First vertebra is axis which articulates with the occipital condyles. (c) The 9th and 10th pairs of ribs are called the floating ribs. (d) Glenoid cavity is a depression to which the thigh bone articulates. 45. Select the correct statement regarding the specific disorder of muscular or skeletal system. (a) Myasthenia gravis – Autoimmune disorder which inhibits sliding of myosin filaments. (b) Gout – Inflammation of joints due to extra deposition of calcium. (c) Muscular dystrophy – Age related shortening of muscles. (d) Osteoporosis – Decrease in bone mass and higher chances of fractures with advancing age. 46. Select the correct statement with respect to locomotion in humans. (a) Accumulation of uric acid crystals in joints causes their inflammation. (b) The vertebral column has 10 thoracic vertebrae. (c) The joint between adjacent vertebrae is a fibrous joint. (d) The decreased level of progesterone causes osteoporosis in old people. 47. Which of the following statements is/are correct? (i) During muscle contraction, isotropic band gets elongated. (ii). Acetylcholine is released when the neural signal reaches the motor end plate. (iii) Muscle contraction is initiated by the signal sent by CNS via a sensory neuron. (iv) Repeated activation of muscle can lead to lactic acid accumulation. (a) (i) and (iii) (b) (ii) and (iv) (c) (i), (ii) and (iii) (d) (ii), (iii) and (iv) 48. According to the sliding filament theory of muscle contraction, (a) actin binds ATP and breaks it apart as actin pulls against myosin. (b) calcium ions are released from myosin as the filaments slide by. (c) the thick and thin filaments do not change length during this process. (d) all of the above 49. Read the following 4-statements (i – iv) and accordingly mark the option that has both correct statements. (i) Cardiac fibres are branched with one or more nuclei. (ii) Smooth muscles are unbranched and cylindrical. (iii) Striated muscles can be branched or unbranched. (iv) Involuntary muscles are non-striated. (a) (i) and (iv) (b) (ii) and (iii) (c) (iii) and (iv) (d) (i) and (iii) ASSERTION/REASON TYPE QUESTIONS In the following questions, a statement of Assertion is followed by a statement of Reason. (a) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion. (b) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion. (c) If Assertion is true but Reason is false. (d) If both Assertion and Reason are false. 50. Assertion-: Knee joint is an example of hinge joint. Reason : Femur, patella and fibula are associated with knee joint. 51. Assertion : The phase of muscle contraction occurs when myosin binds and releases actin. Reason : Muscle contraction is initiated by a signal sent by the peripheral nervous system via a motor neuron. 52. Assertion : Recurrent activation of the muscles will become fatigue. Reason : Anaerobic breakdown of glycogen in the muscles can lead to the accumulation of lactic acid. EduHulk
Locomotion and Movement 173 53. Assertion : Inflammation of a skeletal joint may immobilize the movements of the joint. Reason :Uric acid crystals in the joint cavity and ossification of articular cartilage lead to this. 54. Assertion : Ball and socket joints are the most mobile joints. Reason : Synovial fluid is present here. 55. Assertion : Arthritis or inflammation of a joint makes the joint painful. Reason : Some toxic substances are deposited at the joint. MATCHING TYPE QUESTIONS 56. Three of the following pairs of the human skeletal parts are correctly matched with their respective inclusive skeletal category and one pair is not matched. Identify the non-matching pair. Pairs of skeletal parts Category (a) Sternum and ribs – Axial skeleton (b) Clavicle and glenoid – Pelvic girdle cavity (c) Humerus and ulna – Appendicular skeleton (d) Malleus and stapes – Ear ossicles 57. Which of the following pair shows the correct characteristics with an example of a synovial joint in humans? Characteristics Examples (a) Fluid filled between – Skull bones two joints, provides cushion (b) Fluid filled synovial – Joint between cavity between two atlas and axis bones (c) Lymph filled between – Gliding joint two bones, limited between movement carpals (d) Fluid cartilage – Knee joint between two bones, limited movements 58. Which of the following pairs of joints and its location is correctly matched? (a) Hinge joint – Between vertebrae (b) Gliding joint – Between zygapophyses of the successive vertebrae (c) Cartilaginous joint– Skull bones (d) Fibrous joint – Between phalanges 59. Which of the following human skeletal parts are correctly matched with their respective category? Pairs of skeletal parts Category A. Humerus and ulna – Appendicular skeleton B. Malleus and stapes – Ear ossicles C. Sternum and ribs – Axial skeleton D. Clavicle and glenoid – Pelvic girdle cavity (a) A and B only (b) A, B and C only (c) A, B, and D only (d) All of the above 60. Match column I (types of synovial joints) with column II (bones involved) and choose the correct option. Column I Column II (Type of synovial joint) (Bone involved) A. Ball and Socket joint I. Carpal and metacarpal of thumb B. Hinge joint II. Humerus and pectoral girdle C. Pivot joint III. Knee D. Saddle joint IV. Atlas and axis (a) A – I; B – II; C – III; D – IV (b) A – II; B – III; C – IV; D – I (c) A – III; B – I; C – IV; D – II (d) A – IV; B – III; C – II; D – I 61. Which of the following option shows the correctly matched bones (given in column I) with its pair (given in column II)? Column-I Column-II A. Carpals I. Bones that form the fingers and toes B. Tarsals II. Bones that form wrist C. Phalanges III. Bones that form the palms of the hands D. Metatarsals IV. Bones that form the ankles (a) A – II, B – IV, C – I, D – III (b) A – I, B – II, C – III, D – IV (c) A – III, B – II, C – IV, D – I (d) A – IV, B – I, C – III, D – II 62. Which of the following functional characteristics of muscle is correctly matched with its appropriate descriptive term? I. Elasticity- Ability of a muscle fibre to recoil and resume its resting length after being stretched. II. Excitability- Ability to respond to any change in the environment (inside or outside the body) III. Extensibility- Ability to be stretched IV. Contractility- Ability to shorten forcibly when adequately stimulated (a) I and III only (b) II and IV only (c) I, II, and III only (d) All of these 63. Match the name of bone given in column I with their numbers given in column II. Column-I Column-II A. Thoracic I. 8 B. Wrist bones II. 2 pairs C. False ribs III. 12 D. Metatarsal IV. 3 pairs EduHulk 315