You are probably referring to rough endoplasmic reticulum or ribosomes.
Ribosomes are the site of Protein synthesis
Ribosomes
Ribosomes are the structure that synthesize proteins. They are located on the endoplasmic reticulum, which is an organelle inside the cell.
Ribosomes are the small structures inside the nucleus that help make proteins. They are responsible for translating the genetic information from the DNA into proteins by assembling amino acids in the correct sequence. Ribosomes can be found both in the nucleus and in the cytoplasm of the cell.
The right question would be, "Do cells make proteins FROM small structures called amino acids?" The short answer is, yes. If your interested in how look up the Hierarchy of Protein Structures. Specifically: Primary Structure ie. the amino acid sequence Secondary Structure ie repeating folding patterns (which help determine function.) Tertiary Structure ie. many folds and patters create a 3-D shape. For some proteins this is the final structure to a functional protein (such as ribonuclease). Quaternary Structure ie. Most functional proteins are comprised of two or more polypeptides that each adopt a Tertiary Structure (see above) and then assemble with each other. When proteins consist of more than one polypeptide chain, they are said to have Quarternary Structure.
ribosomes
DNA is packaged very tight by proteins. Proteins found around the DNA supports both the structure and functions. The proteins and the DNA make up the chromosomes. Proteins and DNA in animal cells are chromatin! DNA contains information because of the DNA's structure!
Amino Acids are small monomers of proteins that make protein up.
ribosones
The structure that synthesizes proteins in bacteria is called a ribosome. Ribosomes are responsible for translating the genetic information from messenger RNA (mRNA) into specific amino acid sequences that make up proteins. In bacteria, ribosomes are composed of a small subunit and a large subunit that work together during protein synthesis.
Amino acids make up proteins.
Yes it does.