Anyone can get melasma, but it is more common among young women. Melasma often appears during pregnancy, in the second or third trimesters. Doctors don't know exactly what causes melasma, but the condition is associated with the female hormones estrogen and progesterone.
A ribosome is made of numerous proteins and RNA. Function The Golgi complex takes proteins made by the endoplasmic reticulum and exports them out of the cell as needed. It is able to keep dangerous proteins from damaging the cell which made them. It is like a packaging department ready to deliver the protein products made in the cell.
These  organelles are the nucleus, ribosomes, rough endoplasmic reticulum,  and the Golgi apparatus. Proteins are t â¦ he large complex molecules,  which all your cells are making continuously. Each protein is made  up of many amino acids which must join together in a correct order  for the protein to work properly.First it takes the copy of  relevant DNA instruction in the nucleus cell and takes it into  cytoplasm.n cells, protein is produced in the ribosomes. The instructions for protein synthesis are found in the DNA, which is copied onto mRNA. This mRNA then carries these instruct â¦ ions to the ribosomes where protein synthesis occurs. 2 people found this useful.