CBSE  /  Class 11  /  Biology  /  Locomotion and Movement

  • 1. 
    Metacarpals are present in

  • wrist
  • palm
  • digits
  • thigh

  • 2. 
    The elements associated with muscle contraction are

  • Mg and Ca
  • Mg and Cl
  • Na and Ca
  • Ca and K

  • 3. 
    What happens in osteoporosis?

  • Decrease in progesterone
  • Increase in progesterone
  • Decrease in estrogen
  • Both 2 and 3

  • 4. 
    Coris cycle operates in

  • Cartilage
  • Muscle
  • Liver
  • Liver and muscle

  • 5. 
    One of the following is true of muscle contraction.

  • H-zone expands
  • I-band expands
  • A-Band remains constant
  • The sarcomeres expands

  • 6. 
    Which cavity is formed by the fusion of coxal bones?

  • Glenoid cavity
  • Acetabulum
  • Acromion
  • Scapula

  • 7. 
    Which is a part of pectoral girdle?

  • Acetabulum
  • Ilium
  • Sternum
  • Glenoid cavity

  • 8. 
    A skeletal muscle which decreases the angle between two bones and bends a joint is

  • Flexor
  • Abductor
  • Extensor
  • Adductor

  • 9. 
    Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?

  • Iris – Involuntary smooth muscle
  • Heart wall – Involuntary unstriated muscle
  • Biceps of upper arm – Smooth muscle fibres
  • Abdominal wall – Smooth muscle

  • 10. 
    Largest bone in human body is

  • Ulna
  • Femur
  • Humerus
  • Tibia
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