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

Subtopic:  Skeletal Muscle: Sarcomere |
 65%
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Sarcomere is

(1) Functional unit of contraction

(2) Portion between two successive Z lines

(3) A part of myofibrils

(4) All of these

Subtopic:  Skeletal Muscle: Sarcomere |
 93%
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H zone is not

(1) Central portion of thin filament.

(2) Central portion of thick filament

(3) Present in resting state

(4) Both A and C

Subtopic:  Skeletal Muscle: Sarcomere |
 57%
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The Central portion of thick filament is not overlapped by thin filament during…….. and is known as

(1) Motion, Z line

(2) Motion, H zone

(3) Resting State, H zone

(4) Resting state, Z line

Subtopic:  Skeletal Muscle: Sarcomere |
 85%
From NCERT
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Thin filament is made up of two.....which in turn are made up of many…..

(1) F actins, G actins

(2) G actins, Factins

(3) G actins, g actins

(4) F actins, f actins

Subtopic:  Skeletal Muscle: Myofilaments |
 86%
From NCERT
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How many G actins are there in a thin filament?

(1) Two Filaments of many G actins

(2) One filament of hundreds of G actin

(3) Two Filaments of two hundreds of G actin

(4) Two Filaments of two G actins

Subtopic:  Skeletal Muscle: Myofilaments |
 74%
From NCERT
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How many Filaments are there in thin filament?

1. Two F-actin Filaments and two tropomyosin filaments

2. Two F-actin Filaments and one tropomyosin filaments

3. One F-actin filament and one tropomyosin filament

4. One F-actin and two tropomyosin filament

Subtopic:  Skeletal Muscle: Myofilaments |
 63%
From NCERT
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Subunit of troponin masks the

1. Active binding sites for Myosin on actin

2. Active binding sites for actin on Myosin

3. In resting state, active binding sites for Myosin on actin

4. In resting state, active binding sites for actin on Myosin

Subtopic:  Skeletal Muscle: Myofilaments |
From NCERT
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Each Myosin filament is also a

1. Polymeric Protein

2. Monomeric Protein

3. Monomeric Glycoprotein

4. Polymeric Glycoprotein

Subtopic:  Skeletal Muscle: Myofilaments |
 67%
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Which of the following is a monomeric protein of thick filament?

1. Meromyosins

2. Macromyosins

3. Tropomyosin

4. Troponin

Subtopic:  Skeletal Muscle: Myofilaments |
 88%
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