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Which of these is a secondary messenger?(a) Ca^2+(b) Mg^2+(c) Na^+(d) K^+I got this question in examination.My question is based upon Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11

Answer»

Right option is (c) Na^+

The best I can explain: Ca^2+ is an important secondary messenger. It carries signals or messages from MEMBRANE receptors to the DESIGNATED areas INSIDE the cells. It is also important for MUSCLE contractions.



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