Briefly define the purpose of the following organelles: nucleus, ribosome, nucleolus, rer (rough endoplasmic reticulum), ser (smooth endoplasmic reticulum), golgi apparatus (goldie bodies), lysosomes, cilia, flagella, extracellular matrix (ecm), mitochondria.

The Nucleus contains most of the genetic information for making proteins

The ribosome is the place where the polypeptide strand and the mRNA meet in order to create a protein

Nucleolus has a role in the biogenesis of the ribosomes

RER -intracelular transport and protein making because of the attached ribosomes

SER-intracelular transport,lipid synthesis and it is the place where the glicogen is metabolized

Golgi Apparatus has a secretive role

Lysosomes contain 40+ hydrolytic enzimes that help with intracelular digestion

Cilia and flagella both help with the moving of the cell

Extracellular matrix keeps the cells together

The Mitochondria sythesizes ATP in a process caled oxidative phosphorylation of organic substances

segmentation=endoskeleton=backbone=coelom=tissues