Quick Answer: What Is Meant By Protein Synthesis?

What is the first step of protein synthesis?

TranscriptionThe first step of protein synthesis is called Transcription.

It occurs in the nucleus.

During transcription, mRNA transcribes (copies) DNA.

DNA is “unzipped” and the mRNA strand copies a strand of DNA..

Where does protein synthesis occur?

ribosomesprotein synthesis occurs in cellular structures called ribosomes , found out-side the nucleus. The process by which genetic information is transferred from the nucleus to the ribosomes is called transcription. During transcription, a strand of ribonucleic acid (RNA) is synthesized.

What enzymes are in protein synthesis?

The synthesis of mRNA, tRNA, and rRNA is accomplished by an enzyme called RNA polymerase. Transcription. Transcription is one of the first processes in the overall process of protein synthesis. In transcription, a strand of mRNA is synthesized using the genetic code of DNA.

What are the 4 steps of translation?

Translation happens in four stages: activation (make ready), initiation (start), elongation (make longer) and termination (stop). These terms describe the growth of the amino acid chain (polypeptide).

What is protein synthesis and how does it work?

Protein synthesis is accomplished through a process called translation. After DNA is transcribed into a messenger RNA (mRNA) molecule during transcription, the mRNA must be translated to produce a protein. In translation, mRNA along with transfer RNA (tRNA) and ribosomes work together to produce proteins.

What is required for protein synthesis?

Ribosomal RNA (rRNA) associates with a set of proteins to form ribosomes. These complex structures, which physically move along an mRNA molecule, catalyze the assembly of amino acids into protein chains. They also bind tRNAs and various accessory molecules necessary for protein synthesis.

What are the 5 steps in protein synthesis?

5 Major Stages of Protein Synthesis (explained with diagram) |…(a) Activation of amino acids:(b) Transfer of amino acid to tRNA:(c) Initiation of polypeptide chain:(d) Chain Termination:(e) Protein translocation:

What’s another word for protein synthesis?

Answer and Explanation: Translation is another term for protein synthesis because this is the phase during which the protein molecule is formed. During translation, the tRNA…

What are examples proteins?

Proteins come in a huge variety of forms and perform a wide range of functions. Examples of proteins include enzymes, antibodies and some hormones which help to speed up chemical reactions, defend against diseases and regulate the activity of cells.

What is the purpose of the protein synthesis?

Protein synthesis represents the major route of disposal of amino acids. Amino acids are activated by binding to specific molecules of transfer RNA and assembled by ribosomes into a sequence that has been specified by messenger RNA, which in turn has been transcribed from the DNA template.

What is an example of protein synthesis?

When protein synthesis is taking place, enzymes link tRNA molecules to amino acids in a highly specific manner. For example, tRNA molecule X will link only to amino acid X; tRNA molecule Y will link only to amino acid Y. The third form of RNA is messenger RNA (mRNA).

What are the 3 stages of protein synthesis?

Much like the processes of DNA replication and transcription, translation consists of three main stages: initiation, elongation, and termination. Initiation takes place with the binding of a ribosome to an mRNA transcript.

How long does it take for protein synthesis?

After a workout, there’s a rapid and prolonged rise in muscle protein synthesis. This lasts anywhere from 3 days in newbies to less than 24 hours in advanced athletes. This is because your body becomes better at recovering from exercise, and thus doesn’t need to keep protein synthesis elevated for as long.

What stops protein synthesis?

Most antibiotics that inhibit protein synthesis do so by binding to the bacteria’s ribosomes. This prevents the tRNA from landing and adding its amino acid onto the growing protein. Examples of antibiotics that work this way include tetracyclins, macrolides and aminoglycosides.

Where does the 2nd step of protein synthesis occur?

Translation is the second step in protein synthesis. It is shown in Figure below. Translation takes place at a ribosome in the cytoplasm. During translation, the genetic code in mRNA is read to make a protein.