In the case of globozoospermia ( sperm with round heads ), the Golgi apparatus is not transformed into the " acrosome ", causing male infertility.
32.
The ovum meets with Spermatozoon, a sperm may penetrate and merge with the egg, fertilizing it with the help of certain hydrolytic enzymes present in the acrosome.
33.
Baker describes in detail how " killer sperm " actively seek out rival sperm and kill them with poison from acrosomes to prevent them from getting to the egg.
34.
In cases of "'globozoospermia "'( sperm with round heads ), the Golgi apparatus is not transformed into the acrosome that is needed for fertilization.
35.
This protein is located in the sperm acrosome and is thought to function as a binding protein to proacrosin for packaging and condensation of the acrosin zymogen in the acrosomal matrix.
36.
In other cases, such as in the wood mouse " Apodemus sylvaticus ", premature acrosome reactions have been found to cause increased motility in aggregates of spermatozoa promoting fertilization
37.
In the majority of cases, the acrosomes of " Galea " sperm are smooth in outline, and only occasionally are degenerate forms present or are the acrosomes absent.
38.
In the majority of cases, the acrosomes of " Galea " sperm are smooth in outline, and only occasionally are degenerate forms present or are the acrosomes absent.
39.
The acrosome reaction can be stimulated in vitro by substances a sperm cell may encounter naturally such as progesterone or follicular fluid, as well as the more commonly used calcium ionophore A23187.
40.
In the spermatogenesis process ( development of the spermatozoa in the testis ), the CRISP2 protein is incorporated into the acrosome where it is believed to be involved in the flagellar beating.
