Q. No.Myofibrils has not
(1) Alternate dark and light bands
(2) Striated appearance because of distribution pattern of two important proteins- Actin and Myosin
(3) Both A and B
(4) Sarcolemma
(1) Alternate dark and light bands
(2) Striated appearance because of distribution pattern of two important proteins- Actin and Myosin
(3) Both A and B
(4) Sarcolemma
The light band has….. and is called….
(1) Actin, A band
(2) Actin,. I band
(3) Myosin, M band
(4) Myosin, A band
I in light band of muscle fibril stands for
(1) Isotropic
(2) Isolated
(3) Innervated
(4) Inosonic
A in dark band of muscle fibril stands for
(1) Anisotropic
(2) Animated
(3) Ancient
(4) Annulated
Which of the following is not a correct match?
(1) Light band - I band
(2) Dark band- H band
(3) Light band- Actin
(4) Dark band- Myosin
Actin and Myosin in muscle fibril are arranged
(1) Parallel to each other and perpendicular to the longitudinal axis of the myofibrils
(2) Perpendicular to each other and parallel to the longitudinal axis of the myofibrils
(3) Parallel to each other and parallel to the longitudinal axis of the myofibrils
(4) Perpendicular to each other perpendicular to the longitudinal axis of the myofibrils
Which of the following is/are attributed with Actin filament?
(1) Thin filament
(2) Light bands
(3) Isotropic bands
(4) all of these
Which of the following is not true regarding Z line?
(1) Made up of elastic fibres
(2) Present in centre of each I band
(3) It bisects the I band
(4) Thin Filaments are superficially touching to Z line.
Which of the following is not true regarding M line?
(1) Thin membrane
(2) Fibrous
(3) Holds thick filament of A band
(4) Keeps the Actin filament in centre
Sarcomere is
(1) Functional unit of contraction
(2) Portion between two successive Z lines
(3) A part of myofibrils
(4) All of these
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