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Protein synthesis refers to the process by which organisms synthesize proteins based on genetic information on messenger ribonucleic acid (mRNA) transcribed from deoxyribonucleic acid (DNA).
Protein biosynthesis can be divided into five stages, the activation of amino acids, the initiation of polypeptide chain synthesis, the elongation of peptide chains, the termination and release of peptide chains, and the processing and modification after protein synthesis.
Regulation of protein synthesis.
The rate of protein synthesis in living organisms is controlled primarily at the transcriptional level and, secondarily, during translation. It is affected by a variety of factors such as gender, hormones, cell cycle, growth and development, health status and living environment, as well as numerous biochemical changes involved in protein synthesis.
Since the translation and transcription of prokaryotes are usually coupled together, and their mRNA is short-lived, the rate of protein synthesis is mainly determined by the speed of transcription. Attenuation is a way to regulate the speed of translation by affecting transcription first through excess and deficiency of translation products. The structure and properties of mRNA also regulate the rate of protein synthesis.
Refer to the above content: Encyclopedia - Protein Synthesis.
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The protein biosynthesis process can be divided into five stagesAmino acidsof activation, morePeptide chainsInitiation of synthesis, elongation of peptide chains, termination and release of peptide chains, processing modifications after protein synthesis.
The role of protein and**
Protein is an important nutrient for the human body and a component of the human body. Human nerves, muscles, internal organs, blood, bones, etc. all contain protein, and these tissue cells are constantly renewed every day, so the human body must consume a certain amount of protein every day as a material for composing and repairing tissues.
Enzymes catalyze human body chemical reactions.
It is used for metabolic functions, and without enzymes, life activities cannot be carried out. Enzymes are made up of proteins that maintain normal plasma osmolality.
Supplies energy to the body and maintains the body's acid-base balance. Protein also transports oxygen and nutrients, hemoglobin.
Oxygen can be carried to various parts of the body.
Protein has so many functions, so we need to supplement more protein in our daily life. There are many proteins that we often eat in our daily life, such as meat, in fact, lean meat is a good protein**, and eggs like eggs and duck eggs, which have high protein content.
There are also some soy products, such as tofu and dried tofu.
These things are also rich in protein. It can be said that protein is inseparable from our lives. I think they're so rich in protein, of course, it's very good.
Everyone can eat some of these foods in moderation in their daily life, which is of great help to human health.
Changes in species and quantity indicate changes in DNA, and DNA synthesis occurs only in the nucleus, chloroplasts, and mitochondria in cells. Therefore, the choice c matrilineal inheritance means that if the mother is sick, then its offspring are all sick, the essence is cytoplasmic inheritance, and the so-called DNA in the cytoplasm is in the chloroplast or mitochondria. A and B are secreted proteins, which are modified by the Golgi apparatus, but only change their folding order and add a "primer".
1. Generally speaking, it is DNA that controls protein synthesis; mRNA is the template for protein synthesis, but the ultimate controller is DNA. >>>More
There is no direct relationship! Look at the structure and arrangement of amino acids! Each protein has a representative amino acid!
Cut ......Does this guy on the first floor understand?
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