Hi, I am a first year studying Mental Health
2006-09-19 22:28:00 · 9 answers · asked by rainbow 1 in Science & Mathematics ➔ Biology
Ribosomes. There are ribosomes which are 'free' in the cell, and some which are attached to Endoplasmic reticulum, which is a sort of network in the cell.
2006-09-19 22:31:21 · answer #1 · answered by Jon C 2 · 0⤊ 0⤋
Hi your first answerer is correct the ribosomes are the site of protein synthesis. The ribosomes translate the RNA sequence into amino acids synthesising the protein. Ribosomes are found free in the cytoplasm and on the endoplasmic reticulum. The golgi apparatus mentioned by the other answerer is one of the organelles invovled in sorting and transporting the synthesised protein to the correct area of the cell.
If you look up ribosomes, tRNA and translation all of these should give you more information on protein synthesis if you need it.
2006-09-20 05:42:25 · answer #2 · answered by Ellie 4 · 0⤊ 0⤋
Your question is not very well formulated.
-All organelles are in the cytoplasm so there is no such thing as a cytoplasmic organelle.
-Protein synthesis occurs with the help of ribosomes. Ribosomes are not organelles, they are huge protein-RNA complexes. In Eukaryotic organisms protein synthesis occurs:
a) in the cytosol by free ribosomes (no organelle involved)
b) in the ER (ribosomes from the cytosol translate the mRNA and the peptide is simultaneously inserted in the ER)
c) in organelles with their own DNA and machinery like mitochondria and chloroplasts.
2006-09-20 06:16:58 · answer #3 · answered by bellerophon 6 · 0⤊ 0⤋
Ribosomes are the site of protein synthesis. some are free floating in the cytoplasm but there are some which are attatched to the Rough endoplasmic reticulum which in turn is linked to the nucleus of the cell (if it is eukaryotic). the protein made in the rough E.R. is transported in vesicles to the Golgi apparatus which is responsable for the distribution of the protein, allong with lipids from th esmooth endoplasmic reticulum.
2006-09-20 05:38:35 · answer #4 · answered by tezzwilcox 2 · 0⤊ 0⤋
ribosomes, whether attached on the rough endoplasmic reticulum (ER) or not, are sites of protein synthesis.. they are tiny, round, dark bodies made of proteins.. they assemble amino acids into polypeptides, the polymers that make up proteins..as the polypeptide is synthesized, it passes into the ER.. short chains of sugar then linked to the polypeptide, making the molecule a glycoprotein (glyco is sugar).. when the molecule is ready for export from the ER, the ER packages it in a tiny sac called a transport vesicle.. this buds off fromthe ER membrane.. the secretory protein will now be transported to the Golgi apparatus/Golgisomes/Golgi complex (whichever you prefer to call it) for further processing..
2006-09-20 05:56:08 · answer #5 · answered by Carte Blanche 3 · 0⤊ 0⤋
the membrane bound nucleus is an organelle as well and it is where the first bit of protein synthesis happens (transcription=mRNA synthesis and splicing and modification with the poly A tail and guanine cap)
2006-09-20 06:50:02 · answer #6 · answered by dilsunshine 1 · 0⤊ 0⤋
Ribosomes
2006-09-20 05:50:36 · answer #7 · answered by Maxblax 2 · 0⤊ 0⤋
ribosomes, they are the ones translating the mRNA
2006-09-20 11:29:36 · answer #8 · answered by why_oh_why 2 · 0⤊ 0⤋
golgi apparatus
2006-09-20 05:35:41 · answer #9 · answered by KingRichard 6 · 0⤊ 1⤋