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Which protein forms the thick filaments in muscle fibers? (2020)

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Question: Which protein forms the thick filaments in muscle fibers? (2020)

Options:

  1. A. Actin
  2. B. Myosin
  3. C. Tropomyosin
  4. D. Troponin

Correct Answer: B. Myosin

Exam Year: 2020

Solution: 

Myosin forms the thick filaments in muscle fibers and interacts with actin during contraction.

Which protein forms the thick filaments in muscle fibers? (2020)

Practice Questions

Q1
Which protein forms the thick filaments in muscle fibers? (2020)
  1. A. Actin
  2. B. Myosin
  3. C. Tropomyosin
  4. D. Troponin

Questions & Step-by-Step Solutions

Which protein forms the thick filaments in muscle fibers? (2020)
  • Step 1: Understand that muscle fibers are made up of proteins.
  • Step 2: Identify the two main types of filaments in muscle fibers: thick filaments and thin filaments.
  • Step 3: Know that thick filaments are primarily made of a protein called myosin.
  • Step 4: Learn that myosin interacts with another protein called actin during muscle contraction.
  • Step 5: Conclude that myosin is the protein that forms the thick filaments in muscle fibers.
No concepts available.
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