Fertilization

Exam 2

The sperm’s acrosome is derived

From the Golgi apparatus

The sperm’s acrosome contains

Enzymes that digest proteins (useful to get into the egg)

Sperm’s axoneme

Is a major part of the flagellum

The sperm’s axoneme is

A structure formed by microtubules

Sperm’s axoneme helps

Flagellum to move the sperm

The egg’s cortical granules are

Golgi-derived structures containing proteolytic enzymes (digestive enzymes)

The cortical granules also contain

Adhesive glycoproteins & hyalin protein

Hyalin proteins & adhesive glycoproteins

Prevent polyspermy

Polyspermy

More than one sperm gets in to fertilize the egg

Glutathione is located

In the egg cytoplasm

Glutathione reduces the

Disulfide bonds by donating hydrogens & allows sperm DNA to uncoil

9+2 arrangement in sperm’s axoneme

9 pairs (of 2 microtubules) around the edges of the cell, a pair of 2 microtubules in the middle