involuntary, spindle shaped, uninucleated, unbranched

voluntary, multinucleate and cylindrical

involuntary, cylindrical, multinucleate

voluntary, branched, uninuclear

Match column I with II and select the correct option from the codes given below. Column I Column II ( a ) Structrual and functional unit of a myofibril ( i ) H-zone ( b ) Protein of thin filament ( i i ) Myosin ( c ) Protein of think filament ( i i i ) Sarcomere ( d ) The central part of thick filament not overlapped by thin filament ( i v ) Actin

( a ) - ( i i i ) , ( b ) - ( i v ) , ( c ) - ( i i ) , ( d ) - ( i )

( a ) - ( i ) , ( b ) - ( i i ) , ( c ) - ( i i i ) , ( d ) - ( i v )

( a ) - ( i ) , ( b ) - ( i i i ) , ( c ) - ( i i ) , ( d ) - ( i v )

( a ) - ( i ) , ( b ) - ( i v ) , ( c ) - ( i i i ) , ( d ) - ( i i )

Choose the incorrect statement about muscle contraction from the following:

Sodium ions are released from sarcoplasm

E M B I B E

Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 16

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Earn 100

Examine the given diagrammatic view of human skull given below and identify the skull bones labelled from $A - D$ .

78.75% studentsanswered this correctly

Important Questions on Locomotion and Movement

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 1>Q 3

Upon stimulation of skeletal muscles, calcium is immediately made available for binding to troponin from

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 1>Q 7

In the resting muscle fibre, tropomyosin partially covers

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 17

The H-zone in the skeletal muscle fibre is due to

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 18

Smooth muscles are

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 3>Q 1

During contraction of muscles:

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 3>Q 6

Match column I with II and select the correct option from the codes given below.

	Column I		Column II
$(a)$	Structrual and functional unit of a myofibril	$(i)$	H-zone
$(b)$	Protein of thin filament	$(i i)$	Myosin
$(c)$	Protein of think filament	$(i i i)$	Sarcomere
$(d)$	The central part of thick filament not overlapped by thin filament	$(i v)$	Actin

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 3>Q 8

During muscular contraction, which of the following events occur?
(i) H-zone disappears
(ii) A-band widens
(iii) I-band reduces in width
(iv) Width of A-band is unaffected
(v) M-line and Z-line come closer

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 3>Q 9

Which of the following is true regarding thick filaments?