receptors and transduction

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Complete the following characteristics of Ca2+ as a secondary messenger signalling in neurons

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A rise in cytoplasmic Ca ions allows Ca ions to bind to a range of Ca binding proteins such as

This activates the protein which then activates further signaling pathways by binding to molecules such as

For a rise in intracellular Ca to be sensed, the cell must carefully maintain the resting calcium concentration below

whereas the concentration outside the intracellular environment is of

This steep gradient is maintained by proteins in plasma membrane which transport Ca out the cell sich as the

where H+ ions are counter transported. When Ca2+ rises Ca binding proteins such as

which transports Ca to the ER and the mitochondria which act as stores of Ca ions.



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