21.  By which name's isotropic and anisotropic band respectively known ?

A. I - band, A - band

B. I - band, Intercalated-dise

C. A - band, Z - band

D. H - band, Z - band

Answer : Option A

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22.  Which line is located in the center of H region ?

A. Krause membrane

B. M- line

C. Z - band

D. Hensen’s line

Answer : Option B

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23.  The space between two successive Z-band is known as.....

A. A - band

B. I - band

C. Krause membrane

D. Sarcomere

Answer : Option D

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24.  Which band is called krause membrane ?

A. A

B. Z

C. I

D. H

Answer : Option B

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25.  The functional unit of skeleton muscle is called as......

A. Myofibrils

B. Sarcomere

C. Hensen’s line

D. Krause membrane

Answer : Option B

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26.  What is the name of rod shaped fibrous protein ?

A. Troponin

B. Actin

C. Tropomyosin

D. Meromyosin

Answer : Option C

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27.  Which are two forms of actin fiber ?

A. Monomer-G- protein

B. Polymeric H- actin

C. Polymeric F-actin

D. a and c both

Answer : Option D

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28.  What the is name of complex, small globular protein ?

A. Troponin

B. Tropomyosin

C. Actin

D. Meromyosin

Answer : Option A

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29.  Which is the essential mineral element for muscle contraction ?

A. Ca++

B. Mg++

C. K+

D. Na+

Answer : Option A

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30.  Which is essetial for transmission of messages ?

A. Adrenalin

B. Acetylcholine

C. Norqdrenalin

D. Vasopressin

Answer : Option B

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