NEET 2022 Re · Class 11

Chemical Coordination and Integration

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): FSH which interacts with membrane bound receptors does not enter the target cell. Reason (R): Binding of FSH to its receptors generates second messenger (cyclic AMP) for its biochemical and physiological responses. In the light of the above statements, choose the most appropriate answer from the options given below:

  1. (A)(A) is not correct but (R) is correct
  2. (B)Both (A) and (R) are correct and (R) is the correct explanation of (A)
  3. (C)Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  4. (D)(A) is correct but (R) is not correct

The NCERT line that answers it

Verbatim line

Hormones which interact with membrane-bound receptors normally do not enter the target cell, but generate second messengers (e.g., cyclic AMP, $IP_3$ , $Ca^{++}$ etc) which in turn regulate cellular metabolism (Figure 19.5a).

Chapter
Chemical Coordination and Integration
Section
19.4 MECHANISM OF HORMONE ACTION
Page
9
Words matched
20 of 31

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 hormones interacting with membrane-bound receptors do not enter target cells and generate second messengers like cyclic AMP, which directly supports both statements A and R, but does not specify that FSH is one such hormone, making R not a direct explanation of A.

We did this for 1,565 questions.

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.

Take the free 5-minute checkMore from this chapter

Question text is reproduced from the published NEET 2022 Re 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.