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NEET UG BIOLOGY MCQ: LOCOMOTION AND MOVEMENT
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Assertion: The phase of muscle contraction occurs when myosin binds and releases actin.
Reason: Muscle contraction is initiated by a signal sent by the peripheral nervous system via motor neuron.
Reason: Muscle contraction is initiated by a signal sent by the peripheral nervous system via motor neuron.
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Correct option: C
If the Assertion is correct but Reason is incorrect.
Option C is correct because the assertion is correct: muscle contraction occurs when myosin binds and releases actin. However, the reason is incorrect: muscle contraction is initiated by a signal from the *central* nervous system, not the peripheral nervous system.
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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.