Download Name - Schuette Science

Name: ____________________________
Date: _____
Protein Synthesis Webquest
Step 1:
Go to http://www.pbs.org/wgbh/aso/tryit/dna/# and click on the DNA Workshop
Activity.
Step 2:
When an activity window pops up, choose the Protein Synthesis option and answer the
questions in this worksheet.
1. What is the name of the first process to take place during the synthesis of
protein?
2. What is manufactured as a result of this process?
3. Where in the cell does this process take place?
4. What are the first two steps that take place during transcription?
a.
b.
5. What four bases are found in mRNA?
6. Complete the following matchups for DNA and RNA bases:
DNA
RNA
a. A
-- _____
b. _____
--
A
c. _____
--
C
d. C
--
_____
7. How many bases would an mRNA molecule consist of in a real cell?
8. What happens in the mRNA molecule once it has been full synthesized?
9. What is the name of the second step to take place during protein synthesis?
10. Where does this step take place?
11. What is a:
a. Codon:
b. Anticodon:
c. Ribosome:
12. Complete the missing blanks of the following table:
Codon (mRNA)
Antiocodon (tRNA)
Amino Acid
UAC
GGC
Serine
13. What happens to adjacent amino acids?
14. What happens to the tRNA molecules after this?
15. How many amino acids are found in a typical protein?
Step 3: Close the activity window, and go back to the main page where you started.
At the bottom, click on a link called ‘Protein Synthesis.’
16. What is the main purpose of a DNA molecule in a cell?
17. What is the purpose of protein synthesis?
18. How many ribosomes can be working on a single strand of mRNA at once?
19. At what relative speed does protein synthesis take place?