How many F actins are there in a thin filament?

  1. Two
  2. Many
  3. Only one
  4. Depends upon thickness
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How many G actins are there in a thin filament?

  1. Two Filaments of many G actins
  2. One filament of hundreds of G actin
  3. Two Filaments of two hundreds of G actin
  4. Two Filaments of two G actins

Concept Questions :-

Skeletal Muscle: Myofilaments
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How many Filaments are there in thin filament?

  1. Two actin Filaments and two tropomyosin filaments
  2. Two actin Filaments and one tropomyosin filaments
  3. One actin filament and one tropomyosin filament
  4. One actin and two tropomyosin filament

Concept Questions :-

Skeletal Muscle: Myofilaments
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Subunit of troponin masks the

  1. Active binding sites for Myosin on actin
  2. Active binding sites for actin on Myosin
  3. In resting state, active binding sites for Myosin on actin
  4. In resting state, active binding sites for actin on Myosin

Concept Questions :-

Skeletal Muscle: Myofilaments
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Each Myosin filament is also a

  1. Polymeric Protein
  2. Monomeric Protein
  3. Monomeric Glycoprotein
  4. Polymeric Glycoprotein

Concept Questions :-

Skeletal Muscle: Myofilaments
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Which of the following is a monomeric protein of thick filament?

  1. Meromyosins
  2. Macromyosins
  3. Tropomyosin
  4. Troponin
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Each meromyosin has two

  1. globular head with a short arm
  2. Important part- HMM and LMM
  3. Tails and one head
  4. Short arms and one tail
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The HMM of muscle fibre has not got

  1. Head
  2. Short arm
  3. Tail
  4. Both B and C
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The LMM of muscle fibre is

  1. Tail
  2. Head
  3. Short arm
  4. Both A and C
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The head part of HMM of muscle fibre is

  1. Globular
  2. Triangular
  3. Filamentous
  4. Both B and C
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