Question

Describe how a ribosome builds proteins in a eukaryotic cell.

Answer 1

Ribosomes are the sites of the cell in which proteins synthesis takes place. Cells have many ribosomes and the exact number depends on how active a particular cell in synthesizing proteins.

Cells need to make proteins. Enzymes made of proteins are used to speed up biological processes. Other proteins support cell function and are found embedded in membrane.

Ribosomes are the protein builders or protein synthesizers of the cell. They are like construction guys who connect one amino acid at a time and build long chains.

Ribosomes are special because they found in both prokaryotes and eukaryotes. While structure such as nucleus found in eukaryotes every cell need ribosomes to manufacture proteins

During translation ribosomal sub units assemble together like a sandwich on strand of mRNA where they proceed to attract tRNA molecules tethered to amino acids. A long chain of amino acids emerges as the ribosome decodes the mRNA sequence into a polypeptide or a new protein.

Proteins are large molecules made from chain of amino acids which are the sub units of protein molecules. Eukaryotes produce these proteins through a process called protein synthesis. Transcription is the process of creating mRNA from DNA and translation is when ribosomes read the mRNA and synthesis a protein.

Ribosomes are found in many places around eukaryotic cell. You might find them floating in cytosol. These floating ribosomes make proteins that will be used inside of the cell. Other ribosomes are found on the endoplasmic reticulum.

In eukaryotic cell translation and transcription are separated in bothersome space and time the mRNAs are synthesized in the nucleus and proteins later made into cytoplasm.

The process of making protein is quite simple. First you need an amino acid. Another nucleic acid that lives in the cell is transfer RNA. tRNA is bonded to the amino acids floating around the cell. With the mRNA offering instructions the ribosomes connects to tRNA and puls of one amino acid . The tRNA is then released back into the cell and attaches to another amino acid. The ribosomes build longer amino acids (polypeptides) chains that will eventually a part of longer proteins.