The follicle is the structure that surrounds the egg as it ripens. These fluid filled sacs are found in the ovaries.
The Shell
The egg ripens in the ovary.
In flowering plants, one or more seeds develop within an ovary. The seed coat, which is the hard structure that surrounds the seed, develops from the wall of the chamber where the fertilized egg begins to develop.
The bony structure that surrounds the brain is called the skull or cranium. It provides protection and support for the brain, as well as anchoring muscles and providing structure for the face.
Golgi body
the cell wall
cranium
The sticky part of an egg yolk is called the "vitelline membrane." This membrane surrounds the yolk and helps to protect it, keeping it intact and separate from the egg white. It plays a role in maintaining the yolk's structure and is crucial for the development of an embryo in fertilized eggs.
The nuclear membrane.
ribosomes surrounds the cell
the RER (rough endoplasmic reticulum)
cell wall