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Answered 2011-04-26 10:37:37

It takes a few hours to reach it, and then about 20-30 minutes for a group of sperm to break down the outer membrane of the egg so one can fertilize it.

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Only one sperm cell can penetrate the egg. As soon as one sperm cell enters the egg, its membrane changes and no more sperm cells can get through.


It takes a few minutes for a sperm cell to penetrate the wall of the egg (and when it does so a reaction in the wall prevents other sperm from entering).


When the sperm penetrate the egg cell fertilization occurs.


contains enzymes that allow the sperm to penetrate the egg.


The shape of the sperm is a component needed in order for the sperm to penetrate the layers surrounding the egg. Each sperm needs a head, tail, and mid-piece.


the "cap" on the head of the sperm that contains enzymes that make it possible for the sperm to penetrate the egg.


It takes about day or two to get the sperm to the egg. You will know when your pregnant.


it carries enzymes that help the sperm to penetrate the egg.


It only takes sperm a few minutes to get inside of an egg.


It can take 12 - 72 hours for human sperm to reach the egg.


When the egg and sperm meet this may lead to fertilization and thus conception. This isn't always the case, sometimes sperm will not be able to penetrate the egg to fertilize it.


The sperm has a layer of acids on its head that chemically break down the wall of the egg. Hope this helps!


If the sperm are not "healthy" or present in enough numbers they will will not have the ability to reach and female egg and then penetrate and fertilize then egg.


If you are asking "how long does it take for the sperm to fertilize the egg once it penetrates the egg wall?", it is instantaneous. That's what "fertilized" means. If you are asking "how long does it take the sperm to fertilize the egg once it enters the female body?", there is no exact answer. it could take from a few minutes to a few days.


it takes up to 1 week for sperm to fertilize an egg depending on how fast the sperm swims


The part of the sperm that contains hydrolytic enzymes to help the sperm penetrate the egg is the Acrosome.


It can take several hours for the sperm to travel to the upper portion of the uterine tubes where they meet an egg ready for fertilization.


It usually takes between 3-5 days for Sperm to reach & fertilize the egg.



It is impossible, as soon as the Sperm penetrates the egg it will create barrier that no other sperm can penetrate.



The sperm that reach the egg swim into it and attempt to penetrate the zona pelluca, which is the semi permeable outer membrane of the egg. Some sperm have a shape which makes this relatively easy, and others which are poorly formed are likely to have more difficulty. Sperm creates the enzyme acrosome which helps to effectively 'digest/break-down' the cell membrane of the ovum.


In order to get pregnant, the woman must ovulate/release an egg. If sperm is inside her when the egg is released or for up to 6 days after I believe, there is a chance that that the sperm and egg will meet and the sperm may penetrate the egg, causing fertilization.


A sperm cell contains a head and a tail. The head is used to penetrate the egg cell. The tail allows the sperm to swim to the egg so conception can take place. -just using common sense. but hopefully this can help out a bit.


Fast-swimming sperm can reach the egg in a half an hour, while others may take days. The sperm can live up to 48-72 hours.