Myofibrils are the basic structural unit in the contraction of striated muscle.What is the linear array of cylindrical structures they made of?
A)t-tubules
B)sarcomeres
C)sarcolemmas
D)sarcoplasmic reticulum (SR)

Question

Quizplus · Accepted Answer

Myofibrils are made up of a linear array of cylindrical structures called sarcomeres, which are responsible for muscle contraction. T-tubules, sarcolemmas, and SR are all important structures in muscle cells, but they are not the basic structural unit of muscle contraction.

Myofibrils Are the Basic Structural Unit in the Contraction of Striated