Online microbiology and biology related notes by SAGAR ARYAL
Ribosomes- Structure and Functions The ribosome word is derived – ‘ribo’ from ribonucleic acid and ‘somes’ from the Greek word ‘soma’ which means ‘body’. Ribosomes are tiny spheroidal dense particles (of 150 to 200 A0 diameters) that are primarily found in most prokaryotic and eukaryotic. They are sites of protein synthesis. They are structures containing approximately equal amounts of … Read moreRibosomes- Structure and Functions
Regulation of protein synthesis in Prokaryotes Regulation of protein synthesis is necessary in all cells. Particularly, in the prokaryotic cells, regulation is achieved by means of genetic units called operons alongside a number of related mechanisms as described below: Regulation of Protein Synthesis on the Basis of Nutrient Supply Prokaryotes respond to changes in their … Read moreRegulation of protein synthesis in Prokaryotes
Translation (Protein Synthesis) in Eukaryotes Translation involves translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis. It is the process in which ribosomes in the cytoplasm or ER synthesize proteins after the process of transcription of DNA to RNA. The Ribosomes Ribosomes exist normally as separate subunits that are composed of protein and rRNA. Eukaryotic ribosomes are larger (80S) … Read moreTranslation (Protein Synthesis) in Eukaryotes
Prokaryotic Translation (Protein Synthesis) Translation involves translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis. It is the process in which ribosomes in the cytoplasm or ER synthesize proteins after the process of transcription of DNA to RNA. The Ribosomes Ribosomes exist normally as separate subunits that are composed of protein and rRNA. The subunits come together to form … Read moreProkaryotic Translation (Protein Synthesis)