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STD 11 - 7. Structural organisation in animal — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 7. Structural organisation in animal1 Mark
MCQ
Contractile proteins are found in
  • A
    Bone
  • B
    Blood
  • C
    Cartilage
  • ✓
    Muscles
✓

Answer

Correct option: D.
Muscles
d
Muscles have contractile nature. The contractile structure of muscle cells are called myofibrils. Myofibrils are made of myofilaments. Myofilaments are of two types, myosin and actin. Contraction occurs due to sliding of actin filaments on myosin filaments.

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