Re-NEET 2026 · Question 152 · Class 11

Locomotion and Movement

Muscle contraction is initiated by a signal sent by the central nervous system by the release of _______.

  1. (A)acetyl choline
  2. (B)acetyl coenzyme A
  3. (C)cyclic guanine monophosphate
  4. (D)cyclic adenine monophosphate

The NCERT line that answers it

Verbatim line

A neural signal reaching this junction releases a neurotransmitter (Acetyl choline) which generates an action potential in the sarcolemma.

Chapter
Locomotion and Movement
Section
17.2.2 Mechanism of Muscle Contraction
Page
5
Words matched
19 of 19

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that a neural signal releases the neurotransmitter Acetyl choline, which directly identifies the correct answer.

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Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

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Question text is reproduced from the published Re-NEET 2026 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.