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NEET UG BIOLOGY MCQ: LOCOMOTION AND MOVEMENT
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I. ions pumps back to sarcoplasmic reticulum
II. Z-lines back to their original position
III. Masking of actin filament
IV. Relaxation of muscles
Arrange the above given steps in the sequence of event from first to last
II. Z-lines back to their original position
III. Masking of actin filament
IV. Relaxation of muscles
Arrange the above given steps in the sequence of event from first to last
View answer and explanation
Correct option: B
I → III → II → IV
Option B (I → III → II → IV) is correct because it represents the sequence of events in muscle relaxation, starting with calcium ion pumps and ending with muscle relaxation.
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Identify A, B and C, so as to complete the given statements Which is not the function of endoskeleton? Read the following statements about human skeleton system and choose the option that correctly states them true (T) and false (F).
a. Total number of bones in hind limbs are 60
b. There are 26 bones in vertebral column of an adult man
c. There are 2 pairs of vertebrochondral ribs
d. Axial skeleton is comprised of 80 bones
Assertion : Muscle contraction force increases
with rise in strength of stimulus.
Reason : This is due to increased contraction of
individual muscle fibres with increase in stimulus
strength.
Identify A, B and C, so as to complete the given statements Which is not the function of endoskeleton? Read the following statements about human skeleton system and choose the option that correctly states them true (T) and false (F).
a. Total number of bones in hind limbs are 60
b. There are 26 bones in vertebral column of an adult man
c. There are 2 pairs of vertebrochondral ribs
d. Axial skeleton is comprised of 80 bones
Assertion : Muscle contraction force increases
with rise in strength of stimulus.
Reason : This is due to increased contraction of
individual muscle fibres with increase in stimulus
strength.