Do Now WRITE the QUESTIONS and ANSWER!!! 1. GALLERY WALK.
-
Upload
warren-mcdaniel -
Category
Documents
-
view
223 -
download
0
description
Transcript of Do Now WRITE the QUESTIONS and ANSWER!!! 1. GALLERY WALK.
Do Now
WRITE the QUESTIONS and ANSWER!!!
1. GALLERY WALK
GALLERY WALK
PROTEIN SYTHESIS ANALOGY: A NECKLACE FACTORY
The RIBOSOME is like…
A necklace factory.
Because… The whole purpose of the factory is to make necklaces (proteins)
The DNA is like…
The Boss
Because… it tells the factory workers which type of necklaces to make.
The mRNA is like…
The Secretary
Because… it delivers the necklace recipes and orders to the factory
The Boss (DNA) tells the secretary (mRNA) which necklaces (proteins) need to be made
The secretary (mRNA) delivers the Boss’s (DNA) necklaces order to the factory (Ribosome)
The tRNA is like…
The Delivery trucks
Because… it drops off the ingredients to the factory for the correct necklaces to be made
The trucks (tRNA) drop off the ingredients – the beads (amino acids) - to make the necklaces (proteins) that the Boss (DNA) ordered
So…
The Boss (DNA) gives the necklace orders and recipes to the Secretary (mRNA) to bring to the necklace factory (ribosomes).
The Delivery Trucks (tRNA) bring the ingredients (amino acids) to the necklace factory (ribosome), where the necklaces (proteins) are made and then shipped out
With your partner..
Take 1 minutes to discuss the analogy and how the necklace factory relates to protein synthesis
But…
What does this actually look like?
http://www.youtube.com/watch?v=NJxobgkPEAo
http://www.youtube.com/watch?v=B6O6uRb1D38
Annotate your drawing along with me…
Check Point
1) The diagram above depicts the process of ______________________________ synthesis, or how the cell makes proteins from DNA.
2) What is the name of the process happening inside the nucleus?
3) In one sentence, explain what happens in the nucleus.
4) To what organelle does mRNA go to after the first step of protein synthesis?
5) What step of protein synthesis happens here?
6) Explain what happens during the process you identified above.
PS Overview Practice
Using your knowledge of Protein Synthesis and the Necklace Analogy, Independently complete Protein Synthesis Review practice
Now…
We know that the mRNA brings the recipe to make the proteins
And, the tRNA brings the right ingredients (amino acids) to make the proteins
And, the Ribosome actually puts the ingredients together to make the proteins
BUT… How does the tRNA know which amino acids to bring…?
How does tRNA know which amino acid to bring?
1. Breaks mRNA into groups of 3 called CODON.
2. Use a Codon Chart to TRANSLATE mRNA
CODON into AMINO ACID. 3. Amino acids linked together by the
RIBOSOME to form a polypeptide (PROTEIN) chain.
LET’S TRY IT…
DNA mRNA = TRANSCRIPTION
mRNA amino acids = TRANSLATION
So…
DNA RNA Protein
GUIDED PRACTICETranslation
TRANSCRIPTION RACE
DNA Complementary StrandmRNAAmino Acids
TRANSCRIPTION RACE
DNA CTA Complementary StrandmRNAAmino Acids
TRANSCRIPTION RACE
DNA GCAComplementary StrandmRNAAmino Acids
TRANSCRIPTION RACE
DNA GGTComplementary StrandmRNAAmino Acids
TRANSCRIPTION RACE
DNA TTC CACComplementary StrandmRNAAmino Acids
TRANSCRIPTION RACE
DNA GTA CATComplementary StrandmRNAAmino Acids
TRANSCRIPTION RACE
DNA CCT GTA TCAComplementary StrandmRNAAmino Acids
PRACTICE Protein synthesis
TAT
Protein Synthesis in Action
Pre-lab
ROLES: DNA: Reads the codes 1-10 to the mRNA. Can’t let mRNA see the code! mRNA: Needs a pencil and 10 long strips of paper, numbered 1-10. DNA
is transcribed…A=U, T=A, G=C, and C=G. Keep codes in groups of three letters.
Ribosome: Needs a pencil and the codon word chart. Using the mRNA codons, find the corresponding words, and write a sentence. Each sentence should begin with START and finish with STOP.
You will switch roles every 3 sentences (in this order…) DNA mRNA mRNA Ribosome Ribosome DNA
What does this look like in action..?
Autoville Practice
Using your knowledge of Protein Synthesis and the Cookie Analogy, Independently complete Autoville practice