Observe the relaxed unit of a muscle given below.
a) Redraw the diagram when the muscle unit is maximally contracted.
b) Repeated activation of the muscle can lead to fatigue. Justify.

(## EXP_VAD_ZOO_XI_C09_E03_005_Q01 .png" width="80%"> a) Observe the above graph and find out the region of graph where muscle show maximum contraction. Justify your answer. b) Name the different types of muscle proteins present in thick and thin filaments. c) ca^(2+) is necessary for muscle contraction. Why?