Question

7. The functional unit of a muscle
fibre is
a. sarcomere b. sarcoplasm
c. myosin d. actin​

Answer 1

Answer:

Hey mate ..,

(a) Sarcomere....is the correct answer. .

The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, which are the basic functional units of the muscle fiber. The sarcomere is responsible for the striated appearance of skeletal muscle and forms the basic machinery necessary for muscle contraction.

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Answer 2

Answer:

sarcomere... the functional unit of muscle fibre