### Break Down the Problem
1. Identify the components involved in the actin-myosin interaction.
2. Determine the role of each option provided in the context of muscle contraction.

### Relevant Concepts
1. The actin-myosin bond is crucial in the muscle contraction process.
2. ATP plays a significant role in muscle relaxation and contraction.

### Analysis and Detail
1. In muscle fibers, the myosin head binds to actin to form a cross-bridge during contraction.
2. The binding of ATP to the myosin head causes a conformational change that weakens the actin-myosin bond and leads to detachment of myosin from actin.
3. Phosphate (Pi) is released when ATP is hydrolyzed, but it does not directly cause the breaking of the bond.
4. ADP and tropomyosin do not play a significant role in breaking the bond between actin and myosin.

### Verify and Summarize
The correct answer must enable myosin to detach from actin, which is facilitated by ATP.

### Final Answer
**ATP** is the molecule that binds to the myosin head and breaks the actin-myosin bond.

Question

### Break Down the Problem
1. Identify the components involved in the actin-myosin interaction.
2. Determine the role of each option provided in the context of muscle contraction.

### Relevant Concepts
1. The actin-myosin bond is crucial in the muscle contraction process.
2. ATP plays a significant role in muscle relaxation and contraction.

### Analysis and Detail
1. In muscle fibers, the myosin head binds to actin to form a cross-bridge during contraction.
2. The binding of ATP to the myosin head causes a conformational change that weakens the actin-myosin bond and leads to detachment of myosin from actin.
3. Phosphate (Pi) is released when ATP is hydrolyzed, but it does not directly cause the breaking of the bond.
4. ADP and tropomyosin do not play a significant role in breaking the bond between actin and myosin.

### Verify and Summarize
The correct answer must enable myosin to detach from actin, which is facilitated by ATP.

### Final Answer
**ATP** is the molecule that binds to the myosin head and breaks the actin-myosin bond.

Knowee AI · Accepted Answer

### Break Down the Problem
1. Identify the components involved in the actin-myosin interaction.
2. Determine the role of each option provided in the context of muscle contraction.

### Relevant Concepts
1. The actin-myosin bond is crucial in the muscle contraction process.
2. ATP plays a significant role in muscle relaxation and contraction.

### Analysis and Detail
1. In muscle fibers, the myosin head binds to actin to form a cross-bridge during contraction.
2. The binding of ATP to the myosin head causes a conformational change that weakens the actin-myosin bond and leads to detachment of myosin from actin.
3. Phosphate (Pi) is released when ATP is hydrolyzed, but it does not directly cause the breaking of the bond.
4. ADP and tropomyosin do not play a significant role in breaking the bond between actin and myosin.

### Verify and Summarize
The correct answer must enable myosin to detach from actin, which is facilitated by ATP.

### Final Answer
**ATP** is the molecule that binds to the myosin head and breaks the actin-myosin bond.

The actin-myosin bond is broken by the binding of __________ to the myosin head.Multiple ChoiceATPphosphateADPtropomyosin

Question

The actin-myosin bond is broken by the binding of __________ to the myosin head.

Solution

Break Down the Problem

Relevant Concepts

Analysis and Detail

Verify and Summarize

Final Answer

Similar Questions

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