What triggers the acrosome reaction in a sper | vedclass

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(C) The acrosome reaction is a critical step in fertilization where the sperm releases hydrolytic enzymes (lysins) to penetrate the zona pellucida of

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Influx of $Na^+$

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(C) The acrosome reaction is a critical step in fertilization where the sperm releases hydrolytic enzymes (lysins) to penetrate the zona pellucida of the ovum.This process is primarily triggered by the binding of the sperm to the zona pellucida proteins (specifically $ZP3$ receptors).However,at the cellular level,this binding leads to an influx of $Ca^{2+}$ ions and an increase in intracellular $pH$,which facilitates the fusion of the acrosomal membrane with the sperm plasma membrane.Among the given options,the influx of ions (often associated with $Ca^{2+}$ and $Na^+$) is the physiological trigger for the exocytosis of acrosomal contents.

What triggers the acrosome reaction in a sperm?

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