What ion is released by the fertilized egg that prevents polyspermy? A)Na⁺ B)K⁺ C)Cl^-- D)Ca²⁺

Question

Quizplus · Accepted Answer

The ion released by the fertilized egg that prevents polyspermy is calcium (Ca2+). This ion is released in response to the entry of the sperm into the egg and triggers the cortical reaction, which results in the formation of a fertilization envelope and the detachment of all remaining sperm from the egg's surface. Therefore, option D, which contains Ca2+ ion, is the correct choice. The other options do not contain calcium ion and are not relevant to the fertilization process.

What Ion Is Released by the Fertilized Egg That Prevents