The I-bands of sarcomere have midline called
a) Z-line
b) A-band
c) H-zone
d) M-line
Explanation: Z for Zwish meaning between
A sarcomere is the region of a myofibril between two successive ………
a) Z-line
b) I-band
c) H-zone
d) M-line
Each myofillament is made up of central …… surrounded by……..
a) thin-thick
b) thin- thin
c) thick-thin
d) thick-thick
In myofillament, thick and thin filament are linked together by……
a) cross bridge
b) ionic bridge
c) covalent bond
d) none of these
The thick filament
in myofilament contains which of the following proteins?
a) actin
b) myosin
c) both
d) none of them
The thin filament in myofilament contains which of the following proteins?
a) actin
b) myosin
c) both
d) none of them
Explanation: Actin is a family of globular multi-functional proteins that form microfilaments in the cytoskeleton, and the thin filaments in muscle fibrils.
