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Questions and Answers
Which proteins make up the thick and thin filaments in sarcomeres?
Which proteins make up the thick and thin filaments in sarcomeres?
- Actin and ATP
- Myosin and ATP
- Tropomyosin and myosin
- Myosin and F-actin (correct)
What is the main reason for the A and I banding pattern in sarcomeres?
What is the main reason for the A and I banding pattern in sarcomeres?
- The arrangement of thick and thin myofilaments (correct)
- The binding of myosin to actin
- The organization of myofibrils
- The presence of accessory proteins
What is the function of tropomyosin in thin filaments?
What is the function of tropomyosin in thin filaments?
- To provide ATPase activity
- To form cross-bridges
- To block myosin and actin interaction (correct)
- To hydrolyze ATP
