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1. The p site of the ribosome

  • Discharged tRNAs leave the ribosome via this site
  • Holds the tRNA carrying the growing polypeptide chain
  • Holds the tRNA holding the next amino acid to be added to the chain
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2. Each ribosome has 3 binding sites for mRNA

  • True
  • False

3. Bacteria have 70S ribosomes, eukaryotes have __

  • 80S
  • 150S

4. The A site of the ribosome

  • Holds the tRNA carrying the next amino acid to be added to the chain
  • Holds the tRNA carrying the growing polypeptide chain
  • Discharged tRNAs leave the ribosome via this site

5. Energy is required for initiation and elongation of building a polypeptide, this is supplied by the hydrolysis of

  • GTP
  • ATP

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