Difference between revisions of "Fertilisation"

Revision as of 08:18, 3 April 2019

Fertilisation is when the male and female sex cells come together to make one cell.

In fertilisation the sperm cell uses enzymes in its head to get through the jelly coat of the ovum.
The jelly coat then becomes hard, stopping any other sperm through.
The sperm cell then goes through the cell membrane of the ovum and loses its tail.
The nucleus of the sperm cell is then released into the ovum and the nuclei of the sperm and ovum fuse to make one larger nucleus with all the DNA needed to make a new organism.

Fertilisation is when the male and female gametes come together to make one cell.

During fertilisation the two haploid gametes fuse together to form a diploid cell.

@@ Line 8: / Line 8: @@
 #The [[Sperm Cell|sperm cell]] then goes through the [[Cell Membrane|cell membrane]] of the [[ovum]] and loses its tail.
 #The [[Cell Nucleus|nucleus]] of the [[Sperm Cell|sperm cell]] is then released into the [[ovum]] and the [[Cell Nucleus|nuclei]] of the [[Sperm Cell|sperm]] and [[ovum]] fuse to make one larger [[Cell Nucleus|nucleus]] with all the [[DNA]] needed to make a new [[organism]].
+==Key Stage 4==
+===Meaning===
+[[Fertilisation]] is when the [[male]] and [[female]] [[gametes]] come together to make one [[Cell (Biology)|cell]].
+===About Fertilisation===
+: During [[fertilisation]] the two [[haploid]] [[gamete]]s fuse together to form a [[diploid]] [[Cell (Biology)|cell]].