In Cardiac Muscle Cells, What Cellular Mechanism Is Responsible for Generating

question 31

Multiple Choice

In cardiac muscle cells, what cellular mechanism is responsible for generating force of contraction?

• A) interaction between tropomyosin, troponin and myosin filaments
• B) formation of cross bridges between myosin heads and actin
• C) shortening of tropomyosin filaments
• D) actin pulling the intercalated discs together

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