Actin binding sites are located on

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Important Questions on Locomotion and Movement

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IMPORTANT

Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 1

Choose the incorrect statement about muscle contraction from the following:

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

Given below is diagrammatic representation of an actin filament (thin filament) with labelled parts A, B and C. Which of the following are correct matches with respect to labelled parts and their description?

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 3

Given below is the figure of a sarcomere. Identify the parts labelled as A to D and select the correct option.
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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 4

Look at the given diagram of events during muscle contraction, named as $A, B, C$ . Identify the diagram that shows gradual shortening of length of Sarcomere :-

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 5

Read the given statements and select the correct option.
Statement 1 : A primary myofilament is composed of a bundle of rod-like molecules of a protein myosin.
Statement 2 : Myosin and actin together form a contractile apparatus.

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 6

Read the following statements and choose the correct option:

(i) During muscle contraction, chemical energy is converted into mechanical energy.
(ii) Both actin and myosin are present in A-band.
(iii) Only myosin is present in H-zone.
(iv) Muscular tissue is endodermal in origin.

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Biology Crash Course NEET>Chapter 20 - Locomotion and Movement>Level 2>Q 7

In the given diagram, which joints are found at the marked sites:

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