In the fast block to polyspermy,binding of sperm opens up __________ channels,which depolarizes the egg membrane and __________. A) Na⁺;prevents the entrance of any more sperm B) Na⁺;prevents the entrance of more Na⁺ C) Na⁺;prevents the entrance of Ca²⁺ D) Ca²⁺;prevents the entrance of any more sperm E) Ca²⁺;prevents the entrance of more Na⁺

Question

Quizplus · Accepted Answer

The fast block to polyspermy involves the opening of Na⁺ channels, leading to depolarization of the egg membrane, which prevents additional sperm from entering.

In the Fast Block to Polyspermy,binding of Sperm Opens Up