Myofibrils are __________.
a) the basic contractile units of skeletal muscle tissue
b) the contractile proteins located within a muscle cell
c) the boundaries of individual sarcomeres
d) specialized contractile organelles found in muscle cells
e) none of the listed responses is correct.

Question

25-06-2020
Biology

contestada

Myofibrils are __________.
a) the basic contractile units of skeletal muscle tissue
b) the contractile proteins located within a muscle cell
c) the boundaries of individual sarcomeres
d) specialized contractile organelles found in muscle cells
e) none of the listed responses is correct.

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TenishaTon TenishaTon · Answer 1 · 2020-07-01T05:46:46+02:00

Answer: Option B

Explanation:

Myofibrils are very fine contractile fibers which extends in parallel to the columns along the length of the striated muscles fibres.

They are made of thick and thin myofilaments because of which the muscles appear striped.

The thick filaments in the muscles are composed of actin along with two other muscle protein known as tropomyosin and troponin. They help in contraction of muscles.

Myofibrils are __________. a) the basic contractile units of skeletal muscle tissue b) the contractile proteins located within a muscle cell c) the boundaries of individual sarcomeres d) specialized contractile organelles found in muscle cells e) none of the listed responses is correct.

Respuesta :

Otras preguntas

Myofibrils are __________.
a) the basic contractile units of skeletal muscle tissue
b) the contractile proteins located within a muscle cell
c) the boundaries of individual sarcomeres
d) specialized contractile organelles found in muscle cells
e) none of the listed responses is correct.