(a´ krow soam) [Gr. akros: highest or outermost + soma: body] • The structure at the forward tip of an animal sperm which is the first to fuse with the egg membrane and enter the egg cell.
A cap-like structure covering the anterior part of the sperm head, containing enzymes important for fertilization.
The protein envelope that covers the head of the sperm. This cover must be shed as a prerequisite for fertilization to occur
An enzyme-filled cap on the sperm head which releases acrosomal enzymes necessary to penetrate the egg's outer covering.
AK-ro-som A protrusion on the anterior end of a sperm cell containing digestive enzymes that enable the sperm to penetrate layers around the oocyte. 204
A small 'cap' overlaying the sperm head.
The covering of the head of the sperm that contains enzymes that allow it to penetrate the ovum.
A small “cap” overlaying the head of a sperm.
Region at the head end of a sperm cell that contains a sac of hydrolytic enzymes used to digest the protective coating of the egg.
The enzymes in a sperm's head that allows it to make a hole in the coating around an egg, penetrate and fertilize the egg.
The part of the spermatozoon that releases egg-penetrating enzymes. close window
Portion of a sperm which contains enzymes
The protective structure around the head of the sperm. The acrosome contains enzymes that enable the sperm to penetrate the egg.
The tip of the sperm, contained within the head cap.
Caplike structure surrounding the anterior half of the head of a sperm.
Cap-like structure that surround the sperm head and contains enzymes that help penetration of the egg.
acrosoma] an organelle at the front of the sperm containing a packet of material which contains enzymes necessary for dissolving a passage through the egg jelly or zona pellucida.
the packet of enzymes in a sperm's head that allows the sperm to dissolve a hole in the coating around the egg, which allows the sperm to penetrate and fertilize the egg
bisc333 a process at the anterior end of a sperm cell that produces enzymes to facilitate penetration of the egg www.cogsci.princeton.edu/cgi-bin/webwn
Cytoplasmic vesicle containing digestive enzymes and located at head of a sperm.
In spermatozoa of many animals, the acrosome is an organelle that develops over the anterior half of the spermatozoon's head. It is a cap-like structure derived from the Golgi apparatus. Acrosome formation is completed during testicular maturation.
