Cell A secretes Substance M. Substance M travels via the blood and reaches cell

Question

Cell A secretes Substance M. Substance M travels via the blood and reaches cell B. Substance M binds to a receptor on the surface of cell B. Cell B responds by increasing its production and release of Substance N. Which of the following statements is true? a. Cell B will respond immediately but the response will end as soon as Substance M is destroyed. b. Cell B will respond immediately and the response will persist even after Substance M is destroyed. c. There will be a delay in the response by Cell B, but the response will likely persist even after Substance M is destroyed. d. There will be a delay in the response by Cell B, and the response will end as soon as Substance M is destroyed.

Explanation / Answer

b. Cell B will respond immediately and the response will persist even after Substance M is destroyed because its an enzyme linked second messenger response of the cell which is spontaneous and prolonged

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