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Chemical Coordination and Integration question

2006 · Q19
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Chemical Coordination and Integration question

2006 · Q19

NEETBiologyChemical Coordination and IntegrationMCQ+4 / −1
Which one of the following is not a secondary messenger in hormone action?
  1. A
    cAMP
  2. B
    cGMP
  3. C
    Calcium
  4. D
    Sodium
View written solutionFree

Correct answer: D

Secondary messengers are low-weight diffusible molecules that are used to relay signals within a cell. They are synthesized or released by specific enzymatic reactions, usually as a result of an external signal that is received by a transmembrane receptor. cAMP, cGMP and Ca2+ act as secondary messengers and are located within the cytoplasm. Sodium is an essential nutrient which helps to maintain blood volume and keeps nerves functioning.

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