Zoology-Muscle Contraction
NEET Zoology Muscle Contraction Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 11
Assertion (A): In resting state, the active binding sites for myosin on actin filaments are masked. | Reason (R): Tropomyosin runs along the length of the actin filament and troponin is distributed at regular intervals on it.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
In the resting state, a subunit of troponin masks the active binding sites for myosin on actin filaments, and tropomyosin runs along the actin filament as described in the NCERT context.
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