Home » Class XII » XII Biology » MCQs – Support and Locomotion

CHAPTER – 2

1. In response to irritability, animals show some action called ________.

  • Support
  • Movement
  • Behavior
  • None

2. Support came with the development of various kinds of ________.

  • Skeleton
  • Muscles
  • Organs
  • None

3. Nervous system support both ________ and muscular system.

  • Organ
  • Digestive
  • Skeletal
  • None

4. ________ system consists of a single or set of hard structures

  • Muscular
  • Skeletal
  • Nervous
  • None

5. ________ system provides the body with shape support and protection.

  • Muscular
  • Nervous
  • Skelatal
  • None

6. There are ________ types of skeletons.

  • 2
  • 3
  • 4
  • 5

7. Majority of animals lacking skeletal system are ________ and either sessile or slow moving.

  • Terrestrial
  • Aquatic
  • Both
  • None

8. A type of skeleton which completely surrounds the body as a protective encasement is called

  • Endoskeleton
  • Exoskeleton
  • Hydrostatic skeleton
  • None

9. ________ forms the hard rigid bony frame work inside the body.

  • Endoskeleton
  • Exoskeleton
  • Hydrostatic skeleton
  • None

10. The skeleton which consists of a fluid filled body cavity is called ________

  • Endoskeleton
  • Exoskeleton
  • Hydrostatic skeleton
  • None

11. The fluid filled body cavity is surrounded by ________ and ________ in animals.

  • Water and minerals
  • Bones and cartilages
  • Circular and longitudinal muscles
  • None

12. Contraction of circular muscles cause the body to become ________ and ________.

  • Short and thick
  • Elongated and thick
  • Short and stiff
  • Elongated and stiff

13. By contraction of longitudinal muscles the body becomes ________ and ________.

  • Short and thick
  • Elongated and thick
  • Short and stiff
  • Elongated and stiff

14. Jelly fish and octopus move by ________.

  • Help of appendages
  • Help of setae
  • Jet propulsion
  • None

15. Exoskeleton is ________ external covering.

  • Non living
  • Living
  • Both
  • None

16. Diatoms have exoskeleton made up of ________.

  • Silica
  • Chitin
  • Lime
  • None

17. Mollusces have exoskeleton made up of ________.

  • Silica
  • Chitin
  • Lime
  • None

18. Arthropods have exoskeleton made up of ________.

  • Silica
  • Chitin
  • Lime
  • None

19. The shedding of old exoskeleton and formation of new and bigger one is called ________.

  • Moulting
  • Growth
  • Both
  • None

20. The type of skeleton which is inside the body is called ________.

  • Endoskeleton
  • Exoskeleton
  • Hydrostatic skeleton
  • None

21. Endoskeleton consists of bones and ________.

  • Muscles
  • Vestigial organs
  • Cartilage
  • None

22. An adult human skeleton consists of ________ bones.

  • 206
  • 207
  • 209
  • 300

23. Human skeleton is divided into ________ and ________.

  • Upper and lower
  • Inner and outed
  • Axial and apendicular
  • None

24. A human endoskeleton is about ________% of the total body weight.

  • 18
  • 15
  • 25
  • 60

25. Cranium is also called ________.

  • Brain stem
  • Brain bag
  • Brain box
  • Skull

26. Lower jaw is supported by a single bone called ________.

  • Dentary
  • Mandible
  • Both
  • None

27. The spinal cord is protected in a hollow spine called ________.

  • Sternum
  • Vertebral column
  • Ribs
  • None

28. Spinal cord consist of ________ small bones called vertebrae.

  • 25
  • 56
  • 20
  • 33

29. Cartilagenous pads between two vertebrae prevent ________.

  • Friction
  • Grinding
  • All of the above
  • None

30. The last two pairs of vertebrae are called ________.

  • Free vertebrae
  • Movable vertebrae
  • Floating vertebrae
  • None

31. The front part of rib cage is called ________.

  • Sternum
  • Spinal cord
  • Clavicle
  • None

32. The cells of bones are called ________.

  • Osteoclast
  • Osteocytes
  • Chondrocytes
  • Collagen

33. The conversion of soft bony mass into hard and rigid one is called ________.

  • Clacification
  • Ossification
  • Osmoregulation
  • Both 1 and 2

34. Vitamin D plays vital role in ________.

  • Calcification
  • Deposition
  • Osmoregulation
  • None

35. The points at which two or more bones meet are called ________.

  • Articular
  • Joint
  • Chiasmara
  • None

36. There are ________ types of joint.

  • 2
  • 3
  • 5
  • 7

37. Hip joint is an example of ________ joint.

  • Ball and socket
  • Hinge
  • Sliding
  • Gliding

38. Knee joint is an example of ________ joint.

  • Hinge
  • Sliding
  • Gliding
  • Pivot

39. Elbow joint is an example of ________ joint.

  • Ball and socket
  • Hinge
  • Sliding
  • Pivot

40. Ankle joint is an example of ________.

  • Ball and socket
  • Hinge
  • Sliding
  • Gliding

41. Intervertebral joints are the example of ________ joint.

  • Ball and Socket
  • Sliding
  • Gliding
  • Pivot

42. Sutures of skull are the example of ________ joint.

  • Movable
  • Immovable
  • Partially movable
  • None

43. Costovertebral joints (between ribs and vertebrae) are the example of ________ joint.

  • Movable
  • Immovable
  • Partially movable
  • None

44. Under developed skull is called ________.

  • Macroglosus
  • Microglosus
  • Macrocephaly
  • Microcephaly

45. The increase in porosity of bones is called ________.

  • Osteoporosis
  • Arthritis
  • Sciatica
  • Spondylosis

46. Any hurt to sciatic nerve is called ________.

  • Sciatica
  • Spondylosis
  • Disc slip
  • Rickets

47. Inflammation of joint is called ________.

  • Osteoporosis
  • Arthritis
  • Sciatica
  • Spondylosis

48. Norrowing of the space between the two vertebrae is called ________.

  • Osteoporosis
  • Spondylosis
  • Disc slip
  • Rickets

49. Change in position of intervertebral disc is called ________.

  • Sciatica
  • Spondylosis
  • Disc slip
  • Rickets

50. Breaking in normal continuity of bone is called ________.

  • Fracture
  • Osteoporosis
  • Arthritis
  • Sciatica

51. Those muscles that are attached to a bone are called ________.

  • Cardiac muscle
  • Skeletal muscle
  • Vestigial muscle
  • Smooth muscle

52. Muscles of heart are called ________.

  • Cardiac muscle
  • Skeletal muscle
  • Vestigial muscle
  • Smooth muscle

53. Those muscles that are attached to a vestigial organ are called ________.

  • Cardiac muscle
  • Skeletal muscle
  • Vestigial muscle
  • Smooth muscle

54. Those muscles which have cross striations are called ________.

  • Unstriated muscle
  • Striated muscle
  • Voluntry muscle
  • Involuntry muscle

55. Those muscles which do not have cross striations are called ________.

  • Unstriated muscle
  • Striated muscle
  • Voluntry muscle
  • Involuntry muscle

56. Those muscles which are controlled by autonomic nervous system are called ________

  • Unstriated muscle
  • Striated muscle
  • Voluntry muscle
  • Involuntry muscle

57. Those muscles which are controlled by somatic nervous system are called ________

  • Unstriated muscle
  • Striated muscle
  • Voluntry muscle
  • Involuntry muscle

58. Muscle consists of two part ________ and ________.

  • Arm and body
  • Belly and tendon
  • Belly and process
  • Body and tendon

59. The zone which consists of only actin filament is called ________.

  • I-band
  • H-band
  • A-band
  • Z-line

60. The zone which consists of only myosin filament is called ________.

  • I-band
  • H-band
  • A-band
  • Z-line

61. The line which shows the centre of two I band is called ________.

  • H-band
  • A-band
  • Z-line
  • M-line

62. The line which shows the centre of a sarcomere is called ________.

  • I-band
  • H-band
  • Z-line
  • M-line

63. When muscle contracts it becomes ________ and thicker.

  • Longer
  • Bigger
  • Shorter
  • Stiff

64. Whenever a muscle contracts the sarcomere shortens and the width of darkand light bands changes. This statement is proposed by ________.

  • Mendle
  • Huxley
  • Edward Tatum
  • Francis H.H Wilkins

65. The mechanism of contraction is also called ________ mechanism.

  • Gliding filament
  • Sliding filament
  • Rolling filament
  • None

66. Myosin fillament consists a part called ________.

  • Cross bridge
  • Filament
  • Head
  • Active sites

67. Actin filament have some sites which provide a site for attachment with cross bridges are called ________.

  • Troponin
  • Tropomyosin
  • Active sites
  • Covered sites

68. During muscle contractions the energy is provided by conversion of AIP into ________.

  • AMP
  • ADP
  • Alternately both
  • None

69. The amount of oxygen required to remove lactio acid from the entire muscle is called ________.

  • Oxygen depth
  • Critical oxygen
  • Oxygen debt
  • None

70. Sudden involuntary muscle contraction due to low level of calcium in blood is called ________.

  • Tetany
  • Cramps
  • Spasm
  • Ganong’s Tone

71. Contraction of muscle due to electrolyte imbalance is called ________

  • Tetany
  • Cramps
  • Spasm
  • Ganong’s Tone

72. Those muscles that work such a way that when one contracts other relaxes are called ________

  • Skeletal muscles
  • Vestigial muscles
  • Anctagonistic muscles
  • All of the above

73. The movement by the help of pseudopodial is called ________

  • Cilliarly movement
  • Setal movement
  • Ambeoboid movement
  • Euglenoid movement

74. Locomotory organ of ameoba is ________

  • Cillia
  • Pseudopodia
  • Flagella
  • Appendages

75. Locomotory organ of paramecium is ________

  • Cillia
  • Pseudopodia
  • Flagella
  • Appendages

76. Locomotory organ of arthrapods is ________

  • Flagella
  • Appendages
  • Viceral foot
  • Tube feet

77. Locomotory organ of euglena is ________

  • Cillia
  • Pseudopodia
  • Flagella
  • Appendages

78. Locomotory organ of star fish is ________

  • Cillia
  • Pseudopodia
  • Agella
  • Appendages
  • Viceral foot
  • Tube feet

79. Locomotory organ of earth worm is ________

  • Appendages
  • Viceral foot
  • Tube feet
  • None of the above

80. The locomotion of jelly fish is by the help of ________

  • Jet propulsion
  • Suker
  • Ampulla
  • Summer Sault
Fahim Patel

By Fahim Patel

Fahim Patel is the Content Manager of guesspapers.net. A graduate from Karachi University, he has intensive experience in content production.

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