MCQ
The name 'second messenger' is given to which of the following?
  • A
    ATP
  • B
    Cyclic AMP
  • C
    GTP
  • D
    Both ATP and AMP

Answer

  1. Cyclic AMP

Explanation:

Second messengers are the low molecular weight molecules that serve to transmit and amplify the signal of hormones, the first messenger, to initiate the downstream enzyme cascade inside the cell. cAMP serves as the second messenger in almost all the cells while ATP and GTP are the energy currencies of the cell.

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