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Locomotion and Movement — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYLocomotion and Movement1 Mark
MCQ
Which one of the following is wrongly matched:
  • A
    Myosin - Contractile protein
  • B
    Smooth muscle - Involuntary muscle
  • C
    Red muscle - Myoglobin
  • D
    Troponin - Fibrous protein
✓

Answer

  1. Troponin - Fibrous protein

Explanation:

  • Troponin is a group of globular proteins found in skeletal and heart muscle fibers that regulate muscle contraction. 
  • Actin and myosin are contractile proteins of striated muscles.
  • A tendon is a fibrous connective tissue that attaches muscle to bone.
  • Smooth muscles are involuntary muscles.
  • Red muscles are red because of the presence of dense capillaries that are rich in myoglobin and mitochondria.

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