Structural Organisation in AnimalsHard
Question
The protoplasmic segment of a striated muscle fibre is termed as
Options
A.sarcoplasm
B.sarcomere
C.neuromere
D.metanere
Solution
Sarcomere is the smallest contractile unit of stiated muscle fibre. Sarconere occurs as repeating unit along the length of a myfibril, occupying the region between Z lines of the myofibril. Sarcoplasm is the cytoplasm of a muscle fibre. It is a water solution containing ATP and phosphogens, as well as the product molecules involved in many metabolic reaction. Neuromeres is a metameric segnt of CNS. Metamere is a liner series of primitively similar segments into which the body of higher invertbrata and vertibrate is divisible.
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