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Zoology MCQs for NEET — Practice Questions with Answers

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Which of the following is not a characteristic feature of muscle fibres?

A. Myofilaments B. Myofibrils C. Thickness of muscle fibre D. Both B and C

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Explanation

NCERT page number 304

20.2 Muscles

Locomotion And Movement

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Myofibrils has not

A. Alternate dark and light bands B. Striated appearance because of distribution pattern of two important proteins- Actin and Myosin C. Both A and B D. Sarcolemma

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Explanation

NCERT page number 304

20.2 Muscles

Locomotion And Movement

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The light band has….. and is called….

A. Actin, A band B. Actin,. I band C. Myosin, M band D. Myosin, A band

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Explanation

NCERT page number 304

20.2 Muscles

Locomotion And Movement

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I in light band of muscle fibril stands for

A. Isotropic B. Isolated C. Innervated D. Inosonic

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Explanation

NCERT page number 304

20.2 Muscles

Locomotion And Movement

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A in dark band of muscle fibril stands for

A. Anisotropic B. Animated C. Ancient D. Annulated

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Explanation

NCERT page number 304

20.2 Muscles

Locomotion And Movement

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Which of the following is not a correct match?

A. Light band - I band B. Dark band- H band C. Light band- Actin D. Dark band- Myosin

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Explanation

NCERT page number 304

20.2 Muscles

Locomotion And Movement

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Which of the following is/are attributed with Actin filament?

A. Thin filament B. Light bands C. Isotropic bands D. all of these

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Explanation

NCERT page number 305

20.2 Muscles

Locomotion And Movement

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Sarcomere is

A. Functional unit of contraction B. Portion between two successive Z lines C. A part of myofibrils D. All of these

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Explanation

NCERT page number 305

20.2 Muscles

Locomotion And Movement

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The Central portion of thick filament is not overlapped by thin filament during…….. and is known as

A. Motion, Z line B. Motion, H zone C. Resting State, H zone D. Resting state, Z line

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Explanation

NCERT page number 305

20.2 Muscles

Locomotion And Movement

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Thin filament is made up of two.....which in turn are made up of many…..

A. F actins, G actins B. G actins, Factins C. G actins, g actins D. F actins, f actins

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Explanation

NCERT page number 306

20.2.1 Structure of Contractile Protein

Locomotion And Movement

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