Biology A-Level

Tropomyosin and troponin function

What Tropomyosin and troponin function means in Biology A-Level, as defined for AQA.

Definition of Tropomyosin and troponin function

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In relaxed muscle, tropomyosin covers myosin binding sites on actin filaments; calcium ions bind to troponin, altering its tertiary structure and pulling tropomyosin aside to expose the binding sites.

AQA · Skeletal muscles are stimulated to contract by nerves and act as (study guide)

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Skeletal muscles are stimulated to contract by nerves and act as (AQA A-Level)

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