RIBOSOMES structure and function | Video 5

Ribosomes are also called Ribonucleoparticles first time studied in 1955 by palad.
Ribosomes are complexes of protein and RNA. The main function of ribosome is the protein synthesis.
Roibosomes are not protein bounded and thus not concidered as organelle. Ribosomes are small dense granular structure present on ER and also in free form inside the cytoplasm. Ribosomes are almost composed of equal amount of RNA and Protein. Cells that have high rate of Protein synthesis have high number of ribosomes for example Pancreas cells of Human which make many digestive enzymes.
Ribosomes are synthesized in the nucleolus of nucleus and have two subunits i.e. Small subunit and large subunit On the basis of size and sedimentation.
Ribosomes are of two type number one is 70s ribosome present in Prokaryotic cell and in mitochondria and chloroplast in Eukaryotic cell. While the second type is 80s ribosomes which is present in Eukaryotic cell. The Function of Ribosome is the synthesis of protein with the help of mRNA and tRNA.

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In 70S, S is the sedimentation rate of whole ribosome.
1svedberg =10 to the raise minus 13second.

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Sir you didn't show the structure of Ribosome in this vid???

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Sir kindly bta dy kh agr ribosomes nucleolus k rRna sy bnty hi to prokaryot my ks chez sy bnyng?

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Why Ribosomes are also called Ribonucleo protein particle

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nucleus transcribes or copy... segments of DNA into ribonucleic acid (RNA), a molecule similar to DNA, which directs the translation of RNA into proteins. Ribosomes read the RNA and translate it into proteins by sticking together amino acids in the order the RNA defines... I think it's simplest way to understand

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[@WaqasAhmad-sq9il]

سر جی اپ نے ribosome کو کیوں arganelle consider نہیں یہ تو arganelle ھے کیونکہ اس کا difination ہمیں membrane کے بارے میں کچھ نہیں بتاتا
سر جی اگر کویی ریزن ھے تو میرے ساتھ شییر کرو پلیز

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It waz first studied by "George emil palade" in 1950 and these were named as "palade granules" . Later on in 1958 there were termed officially as "ribosomes". Thanks

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Bro 80s and 70s you studied the cell centrifugation it is the rate they settle down during centrifugation

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V Nice
But in eukaryotes it hsa membrane so its organelle
In prokaryotes no membrane so not consider organelle

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Sir what is the function of Ribosomal RNA, also describe difference between DNA and RNA

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Sir ribosome to mitochondria me bhi hote he

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sar apne pehle kaha hai k ribosomes ki compostion bnti hai 1 ribosomal rna 2 protien pir apne ye kaha ha k ribosomes protein bnaty hain kindly reply

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