The smallest functional unit of striated muscle is

I band

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Z band

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Myofibril

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Sarcomere

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Solution

The correct option is D Sarcomere
The Sarcomere is the functional contractile unit of striated muscles. It is composed of thick and thin filaments made up of contractile proteins arranged between adjacent serrations called Z-lines.

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The smallest functional unit of striated muscle is

The correct option is D SarcomereThe Sarcomere is the functional contractile unit of striated muscles. It is composed of thick and thin filaments made up of contractile proteins arranged between adjacent serrations called Z-lines.

The correct option is D Sarcomere
The Sarcomere is the functional contractile unit of striated muscles. It is composed of thick and thin filaments made up of contractile proteins arranged between adjacent serrations called Z-lines.