The smallest functional unit of the striated muscle is called
A
Sarcomere
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B
Myosin
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C
Fibril
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D
Sarcoplasm
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Solution
The correct option is A Sarcomere A sarcomere is the smallest or basic unit of striated muscle tissue. Skeletal muscles consist of tubular muscle cells (myocytes or myofibres), which are formed by a process known as myogenesis.
Myosin is the prototype of a molecular motor, a protein that converts chemical energy in the form of ATP to mechanical energy, thus generating force and movement.
Fibril is a fine fibre, such as a myofibril or neurofibril. Neurofilaments are about 10 nanometers in diameter.
Sarcoplasm is the cytoplasm of striated muscle cells.