Centrioles lie at right angels to the other ones in the cell. Each cell contains nine tubes with each having three tubules. The centrioles generate the cells cytoskeleton.
Golgi Apparatus
This is found near the nucleus. Has many layers. This receives simple protein molecules from the rough ER. It changes simple molecules into larger ones that get put into the secretion vesicles. The secretion vesicles help move them out of the cell. Most times all three; the rough er, smooth er and golgi are attached to each other.
Mitochondria
Mitochondria is where cellular respiration occurs. The mitochondria has four parts: these main parts are the outer membrane, intermembrane space, inner membrane and the matrix. Mitochondrias main function is to create energy by aerobic respiration, they create more than 90% of the energy needed by the body; along with that they metabolize amino acids, fatty acids and steroids.
Ribosomes
There are thousands in each cell; all of these compose 25% of the cell’s mass. They produce proteins. Some move and some do not. The ones that move inject proteins into cytoplasm. Those that don’t move are embedded in the rough endoplasmic reticulum.
Endoplasmic Reticulum
This is a tubular network that goes through the cytoplasm. It is a transport system; it transports things from one part of the cell to the other. It stores and separates things. There are two types of E.R.; smooth and rough. The smooth type does not have ribosomes while the rough type does. The smooth E.R. is responsible for building new layers of the Golgi Apparatus. While protein synthesis occurs in the ribosomoes of the rough E.R.
Lysosomes
Digests proteins, lipids and carbohydrates. Also transports material that is undigested to the cell membrane to be removed. With out a lysosome the cell breaks down.
Nucleus
This regulates cell activity such as metabolism, growth and reproduction. It also regulates gene expression. This is where the DNA is stored. It has three main parts: the nucleolus, the chromatin and the nuclear envelope.
Vacuoles
These are sacs for storage, digestion and waste removal.