Docstoc

Sequence of Protein Synthesis

Document Sample
Sequence of Protein Synthesis Powered By Docstoc
					Please do NOT write on this paper!


                 Sequence of Protein Synthesis
You will do this entire activity in your journal or binder.

Using a dictionary, define   synthesis in YOUR OWN WORDS.
Ask your teacher to stamp your work before you proceed to the next step.

Go to portaportal.com, guest name Ms. Peare. Scroll down to the DNA and Cell Cycle
category. Click on Protein Synthesis Animation.

Complete this activity as you view the website.

   1. Explain how a cell knows what specific protein to make.
   2. What is the role of DNA in making messenger RNA (m-RNA)?

                  Additional information not on the website: RNA has four nitrogen
                  bases, just like DNA. Unlike DNA, RNA has uracil instead of
                  thymine.

   3. In mRNA, which bases pair with each other?

                  Additional information not on the website: the process of going from
                  DNA to RNA is called transcription.

   4.   Which organelle is involved in decoding mRNA?
   5.   What is a codon?
   6.   What are the two parts of transfer RNA (tRNA)?
   7.   How do two amino acids join together?

                  Additional information not on the website: the process of going from
                  mRNA to tRNA to making a polypeptide (amino acid) chain is called
                  translation.

   8. What happens to mRNA after the protein is made?
   9. “On your own” thinking question: why is it important that your answer to #8
      happens?

				
DOCUMENT INFO