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Questions and Answers
What is the structure of each actin (thin) filament?
What is the structure of each actin (thin) filament?
- Contains multiple tropomyosin molecules intertwined with each other
- A complex protein Troponin distributed throughout its length
- Consists of only one F actin helically wound to itself
- Made of two G actins helically wound to each other (correct)
What constitutes one thick filament in muscle cells?
What constitutes one thick filament in muscle cells?
- Troponin
- Meromyosins (correct)
- Tropomyosin
- G actin
What are the two important parts of a meromyosin?
What are the two important parts of a meromyosin?
- Globular tail and long arm
- G actin and F actin
- Tropomyosin and Troponin
- Heavy meromyosin and light meromyosin (correct)
What type of enzyme is the globular head of meromyosin?
What type of enzyme is the globular head of meromyosin?
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What protein masks the active binding sites for myosin on the actin filaments in the resting state?
What protein masks the active binding sites for myosin on the actin filaments in the resting state?
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Where are the CA Actin binding sites located?
Where are the CA Actin binding sites located?
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