1. Protein Synthesis Part 2 pp. 207-210
Translation
Protein Synthesis Part 2 pp

2. Types of RNA mRNA (Messenger RNA) rRNA (Ribosomal RNA)
Carries instructions to make a protein
rRNA (Ribosomal RNA)
Part of ribosome
tRNA (Transfer RNA)
Transfers amino acids to ribosomes

3. Proteins (macromolecule)
Made of amino acids
20 amino acids
Sequence of amino acids determines the protein
Protein function is based on shape

4. Overview Translation: the reading of mRNA to make proteins
DNA  mRNA  Proteins
Ribosomes (in cytoplasm) read (translate) mRNA to assemble proteins

5. Genetic Code ACU GCG UAA ACC
mRNA is used as a template to make proteins
3 mRNA nucleotides = 1 codon = 1 amino acid
Codons tell when to stop and start (MET)

6. Practice!
Find the Amino Acid:
CUC:
AAU:
UCC:
UAG:

7. Practice!
Find the Amino Acid:
CUC: Leu
AAU: Asn
UCC: Ser
UAG: STOP!

8. - Peptide bond forms between amino acids, separating it from tRNA

9. Assembly A ribosome attaches to mRNA at start codon
tRNA brings in amino acids floating in cytoplasm
Tip of tRNA binds to a specific amino acid and carries ribosomes
Anti-codon binds to mRNA