Start learning →

The site of protein synthesis (translation) is the:

ARibosome — composed of rRNA and proteins
BEndoplasmic reticulum lumen
CMitochondria only
DNucleus
Answer & Solution
Correct answer: A. Ribosome — composed of rRNA and proteins
Translation occurs on **ribosomes** — composed of ~rRNA and ~80 different proteins, in two subunits (large + small). The **23S rRNA in bacteria acts as the catalyst (ribozyme)** for peptide bond formation — proof that life began around RNA.
Practise this question with Quill — AP Biology →

Keep practising Unit 5C: Non-Mendelian Genetics & Population Transmission

Browse all Unit 5C: Non-Mendelian Genetics & Population Transmission questions for AP Biology, or explore more Biology topics.

Start a Unit 5C: Non-Mendelian Genetics & Population Transmission lesson →