An individual sarcomere of a myofibril consis | vedclass

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(A) sarcomere is the functional unit of a muscle contraction,defined as the segment between two successive $Z-$lines.It consists of an arrangement of

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Overlapping actin and myosin

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(A) sarcomere is the functional unit of a muscle contraction,defined as the segment between two successive $Z-$lines.It consists of an arrangement of thick filaments (myosin) and thin filaments (actin).In the resting state,the thin filaments partially overlap the thick filaments,which is the structural basis for the sliding filament theory.Therefore,a sarcomere is characterized by the overlapping of actin and myosin filaments.

Column-$I$	Column-$II$
$P$. Skeletal muscle	$I$. Biceps
$Q$. Smooth muscle	$II$. Iris
$R$. Cardiac muscle	$III$. Heart

An individual sarcomere of a myofibril consists of:

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Which protein is present in muscles?

Match the following columns:
Column-$I$ Column-$II$
$P$. Skeletal muscle $I$. Biceps
$Q$. Smooth muscle $II$. Iris
$R$. Cardiac muscle $III$. Heart

In the center of each $I$-band is an elastic fiber called the $......$ which bisects it.

$A$ motor unit is a

Involuntary muscles are

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