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NEET UG BIOLOGY MCQ: LOCOMOTION AND MOVEMENT
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bind …A… in skeletal muscles and leads to the exposure of binding site for …B… on the filament …C…
Identify A, B and C, so as to complete the given statements
Identify A, B and C, so as to complete the given statements
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Correct option: C
A-troponin, B-myosin, C-actin
Option C (A-troponin, B-myosin, C-actin) is correct because Calcium ions bind to troponin, which then exposes the myosin binding sites on actin filaments.
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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. What are store house of calcium ions
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. What are store house of calcium ions