where is proteins are made?

Answer 1

in ribosomes from the translaton of mrna

Answer 2

Proteins, like DNA, are complicated molecules made up by sticking simple building blocks together in a chain. The Proteins are made of more types of building blocks than DNA. 20 kinds of amino acids are involved in making most proteins. Each type of amino acid can perform a different job. Some act like scaffolding, some keep the protein dissolved in water and others take part in the chemical processes that the protein controls.
The next great discovery in genetics, after the structure of the DNA molecule, was the way in which the sequence of DNA bases on the chain carry the information on how to make proteins. The cell first makes a copy of the DNA instructions. The DNA instructions contain a region which controls how often a copy is made. The copy is made of a different type of nucleic acid called RNA.

The RNA copy is moved to the protein making machinery in the cell which is called the "ribosome". Every set of three RNA bases in a row control which amino acid is to be added to a growing protein molecule. A special three base code (usually ATG) tells the ribosome where the instructions on how to make the protein begin in the sequence. The copy of the DNA chain passes through this protein making machinery like a tape through a tape player. The ribosome, however, produces protein instead of sound!

Answer 3

In prokaryotes, proteins are synthesized by ribosomes that float freely within the cytoplasm of the cell. In eukaryotes, in addition to free-floating ribosomes, proteins are also synthesized by ribosomes anchored to the endoplasmic reticulum and the nuclear envelope.

Answer 4

Look waine,
Proteins are a very complex compounds
-The basic unit for buliding proteins is AMINO ACIDS (aa)
*How the proteins are made?
1-DNA double strand separated and then by RNA-dependentDNA enzyme which make m-RNA (massanger RNA)
2-m-RNA go out from nucleus to the cytoplasm and then by t-RNA (transport-RNA) catch aa from cytoplasm and the connect them with each other
-N.B.: DNA= Deoxyribonuclic acid and RNA= Ribonuclic acid
#When aa are connected to each other, there is a modification in structure to make the active proteins (such as enzymes, enzymes are proteins)
>aa connected to each other called primary structure (1ry)
>1ry + 1ry = Secondary structure (2nd)
>Then 3ry and final Quaternary structure
-Look th these:
1-http://web.mit.edu/esgbio/www/lm/proteins/aa/aminoacids.html
2-http://www.sci.sdsu.edu/~smaloy/MicrobialGenetics/topics/mutations/aminoacids.JPG
3-http://www.friedli.com/herbs/phytochem/proteins.html
4-http://alpha2.bmc.uu.se/~kenth/bioinfo/structure/secondary/01.html
5-http://kvhs.nbed.nb.ca/gallant/biology/secondary_structure.jpg
6-http://academic.brooklyn.cuny.edu/biology/bio4fv/page/3d_prot.htm
7-http://www.emc.maricopa.edu/faculty/farabee/biobk/BioBookPROTSYn.html

Answer 5

proteins are made in cells

Answer 6

protein synthesis occurs in the endoplasmic reticulum