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content/Biokemi/Gamla tentor/2021-12-16/16.md

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+---
+tags:
+  - biokemi
+  - provfråga
+  - rna-syntes
+---
+**Which basic building blocks is the ribosome made of? / Vad är ribosomen huvudsakligen uppbyggd av?**
+
+**Answer**
+
+It is made of rRNA and proteins. rRNA is in the center of both the large subunit and the small subunit. The proteins are more in the periphery.
+
+As described the ribosome has a large and a small subunit. In prokaryotes the small subunit is 30S and the large is 50S – they together form the 70S ribosome. In eukaryotes the ribosome is a bigger, the small subunit is 40S and the bigger is 60S – they form the 80S ribosome.
+
+The small subunits is where the t-RNA´s anticodon pairs with the codon on the RNA strand, in the large subunit the peptide-bond is formed.