9th Class Science Tissues

  • question_answer 40)
      Contractile proteins are found in (a) bones                             (b) blood                             (c) muscles                        (d) cartilage

    Answer:

    (c) Contractile proteins are found in muscles, as they are associated with the movement of body or limbs. The contraction and relaxation of contractile proteins, present in muscles bring about movements of limbs, internal organs, etc. The bones are the major supporting tissue which form the endoskeleton of a vertebrate body. Blood is a fluid connective tissue responsible for transport of oxygen, nutrients, hormones etc., and for producing antitoxins and antibodies, etc. Cartilage provides support and flexibility to the body parts and smoothens surface at joints.


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