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The part of the sarcomere in which only ...

The part of the sarcomere in which only myosin is present is termed as:

A

A-Band

B

I-Line

C

M-Line

D

H-Band

Text Solution

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The correct Answer is:
To solve the question about the part of the sarcomere in which only myosin is present, we will analyze the options provided and understand the structure of the sarcomere. ### Step-by-Step Solution: 1. **Understanding the Sarcomere**: - The sarcomere is the basic contractile unit of muscle tissue. It is composed of various bands and lines that contain different types of proteins, primarily actin and myosin. 2. **Analyzing the Options**: - **A-band**: This band contains both actin and myosin filaments. Therefore, it cannot be the correct answer since we are looking for a part that contains only myosin. - **I-band**: This band consists solely of actin filaments. Thus, it is also not the correct answer as it does not contain myosin. - **M-line**: The M-line is a structure within the sarcomere that contains myomesin and myosin-binding proteins. While it is associated with myosin, it is not solely composed of myosin. - **H-band**: The H-band is the region of the sarcomere that contains only myosin filaments. This makes it the correct answer to the question. 3. **Conclusion**: - After evaluating all the options, the part of the sarcomere in which only myosin is present is termed as the **H-band**. ### Final Answer: The part of the sarcomere in which only myosin is present is termed as **H-band**. ---
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