Which of the following is involved in the prevention of polyspermy?Multiple Choiceacrosome of the spermdepolarization of the egg's plasma membranefusion of the sperm and egg nucleuschanges within the corona radiatathe number of chromosomes contained within the sperm
Question
Which of the following is involved in the prevention of polyspermy?Multiple Choiceacrosome of the spermdepolarization of the egg's plasma membranefusion of the sperm and egg nucleuschanges within the corona radiatathe number of chromosomes contained within the sperm
Solution
The prevention of polyspermy, which is the fertilization of an egg by more than one sperm, is primarily achieved through the depolarization of the egg's plasma membrane. This rapid change in electrical charge serves as a fast block to polyspermy. After a sperm binds to the egg, it triggers the egg to release ions, causing the egg's membrane to depolarize. This depolarization prevents other sperms from fusing with the egg. Therefore, the correct answer is "depolarization of the egg's plasma membrane".
Similar Questions
The slow block to polyspermy is due toa) a transient voltage change across the membrane.b) the consumption of yolk protein.c) the jelly coat blocking sperm penetration.d) formation of the fertilization envelope
The “fast block” to polyspermy is due toa) depolarisation of the egg membrane.b) an increase in concentration of Ca 2+ ions.c) fusion of cortical granules with the egg membrane.d) activation of the egg
After the fertilization of a sea urchin egg, the influx of which ion prevents polyspermy?Multiple choice question.PotassiumCalciumSodiumChloride
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It secrete a substances that form the semen and protect the sperm cells.
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