Protein synthesis

1
Protein synthesis

• Lesson 6 GCSE Triple Science Module 14

2
Lesson objectives
1. You will understand the role of DNA in
deciding protein structure 2. You will
understand the 3 stages of protein synthesis
3
Starter activity
Copy and complete questions
1. What does DNA stand for? 2. What is DNA made
up from? 3. What are the four bases of DNA
called? 4. How many bases make up the code for
one amino acid?
This site will help you remember - BBC Education
- AS Guru - Biology - Genes and Genetics -
Structure of DNA - Nucleotides
4
Protein synthesis

• 3 important stages in protein synthesis
• The coding by triplets of bases to produce mRNA
  (Transcription)
• The linking of mRNA to tRNA at ribosomes
  (Translation)
• The linking of amino acids to form polypeptides

5
Transcription of mRNA
6
Translation of mRNA to make protein
7
Overview of protein synthesis
8
http//www.bbc.co.uk/education/asguru/biology/int
ro.shtml BBC - Education Scotland - Higher
Bitesize Revision - Biology - Cell Biology - RNA
and protein synthesis Revision Intro
Activities

• Use a range of websites to produce
• An annotated flow chart showing the stages of
  protein synthesis.
• 2. Publish you work on your own website pages!
  (to go on school site )
• Two sites below will help

9
Plenary

• Present your website pages to the class for peer
  assessment. Presentation should be no more than
  five minutes and cover all the stages of protein
  synthesis.
• Your web-pages will be judged on
• scientific content
• web design
• originality of material
• Remember to acknowledge all material used by
  another author.