Pick up: Protein Synthesis notepage DNA Coloring – Transcription & Translation

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Today in Biology…. Pick up: Protein Synthesis notepage DNA Coloring – Transcription & Translation Protein Synthesis wkst. Week #9 (12/9-12/13) Warm Up – Mon, 12/9: - Review of DNA Base pairing (1, 7, 11 & 21). Biology Fun Fact: - PowerPoint PPT Presentation

Transcript of Pick up: Protein Synthesis notepage DNA Coloring – Transcription & Translation

  • Pick up:Protein Synthesis notepageDNA Coloring Transcription & TranslationProtein Synthesis wkstAgenda:Protein Synthesis notes: TranscriptionColoring & Protein Synthesis wkst

    Homework:DNA Extraction Lab Applications Write-up Thurs, 12/12DNA Replication & Protein Synthesis Test Fri, 12/13Biology Fun Fact:There are thousands of different proteins within each organism, but they are built from only 22 amino acids. Amino acids are called building blocks of life & are constructed in the protein-building factory of the cell - the ribosome.Week #9 (12/9-12/13)Warm Up Mon, 12/9:- Review of DNA Base pairing (1, 7, 11 & 21)Unit Learning Goal: I will understand the workings of DNA & RNA Replication & Protein Synthesis.

  • Applications- What are the applications or uses of DNA Extraction? Identify & explain at least 2 uses for this lab.- Research a case (study or scenario) in which DNA was used.- MUST include a Works Cited page (last page of report) to cite your source!!!-IF NO WORKS CITED, IT IS PLAGAIRISM = 0!!!

    This APPLICATIONS WRITE-UP is DUE Tues, 12/12 & falls into the Assignment Category of LABS/LAB REPORTS which is worth 30% of your overall grade!!!L? DNA Extraction Applications Write-upDUE Thurs, 12/12

  • On the Protein Synthesis wkst, read direction #1.Complete questions #1, 7, 11 & 21.Pg. 65 DNA Coloring: Transcription & Translation

  • DNARNAProteinReplicationTranscriptionTranslationHow DNA determines everything in our body?Pg. 46 How DNA Determines Everything! Concept Map

  • A gene, is a section of the DNA strand that gives the code for one protein.The protein coded for in each gene determines how a characteristic of an organism will developRegulating cell processes, Constructing muscle & bone, Fighting diseases& lots more!!!Pg. 49 Protein Synthesis notes

  • PROTEIN SYNTHESISSo, how does DNAs message travel out of the nucleus & into the cytoplasm of the cell, where the message gets expressed as a protein? This process is known as:Pg. 49 Protein Synthesis notes

  • Pg. 49 Protein Synthesis notesRNA!!!

    Ribose Nucleic AcidSimilar to DNA but:Smaller & single-strandedSugar = ribose (not deoxyribose)Contains all the same bases except Thymine Replaced with UracilRNA has G, C, A, U

  • Pg. 49 Protein Synthesis notesUsed in Protein Synthesis:mRNA (messenger RNA)rRNA (ribosomal RNA)tRNA (transfer RNA)

  • Now that we know about DNA & RNA, we can learn Protein Synthesis!!!Protein Synthesis is the process of making a protein from DNA. It has 2 parts: Transcription & TranslationPg. 49 Protein Synthesis notes

  • Transcription video (5:30)Analogy:Imagine that you have a large, old & valuable cookbook that's been in the family for generations.

    Obviously, you don't want to get it soiled with tomato sauce & olive oil, so when you want to make use of a recipe you might copy a page by hand onto a piece of paper to use at stove-side.

    The process of transcription is like making a handwritten copy of a page from the original text for actual use. Pg. 49 Protein Synthesis notes

  • Analogy:In this analogy, the cookbook is the DNA.

    It carries many recipes (for DNA, the recipes contain information on how to construct proteins; the recipes are the genes).

    The handwritten copy is a transcription of the text (a copy in the same language but in a different form) that is being used for a specific recipe (a certain protein).

    It is possible to make many copies of a single recipe (it is possible to transcribe many copies of the gene).

    It is possible to copy more than one recipe -- for example, for a vegetable side dish & dessert, as well as the main dish -- in preparing a meal. Pg. 49 Protein Synthesis notes

  • What does it mean to transcribe something?

    The synthesis of mRNA from a DNA blueprint.

    This occurs in the nucleus, then the mRNA travels out of the nucleus.Pg. 49 Protein Synthesis notes

  • Pg. 49 Protein Synthesis notesVisualizing Transcription!

  • Pg. 65 DNA Coloring: Transcription & TranslationGet in to your lab groups & use colored pencils of the following colors:Orange, dark green, purple, yellow, brown, dark blue, light blue & gray

    Read through the information about Transcription & follow the directions to color-code the picture on back properly!!!

  • Have out:Protein Synthesis notepageDNA Coloring T & T wkstProtein Synthesis wkstAgenda:Protein Synthesis notes: TranslationColoring activity & PS wkstHomework:DNA Extraction Lab Applications Write-up Thurs, 12/12DNA Replication & Protein Synthesis Test Fri, 12/13Biology Fun Fact:Of the 22 amino acids, 8 are called essential amino acids. These cannot be synthesized by the human body; we get them from the food we eat. This is why a balanced diet is SO important!Week #9 (12/9-12/13)Warm Up Tues, 12/10:- Review of Transcription (T & T wkst)Unit Learning Goal: I will understand the workings of DNA & RNA Replication & Protein Synthesis.

  • Applications- What are the applications or uses of DNA Extraction? Identify & explain at least 2 uses for this lab.- Research a case (study or scenario) in which DNA was used.- MUST include a Works Cited page (last page of report) to cite your source!!!-IF NO WORKS CITED, IT IS PLAGAIRISM = 0!!!

    This APPLICATIONS WRITE-UP is DUE Tues, 12/12 & falls into the Assignment Category of LABS/LAB REPORTS which is worth 30% of your overall grade!!!L? DNA Extraction Applications Write-upDUE Thurs, 12/12

  • Using your notes on Transcription of mRNA & your color-coded wkst, answer questions #1, 2 & 6 at the bottom of the DNA Coloring: Transcription & Translation wkst.

    On the Protein Synthesis wkst, read direction #2.Complete questions #2, 5, 8, 12 & 22.Pg. 65 DNA Coloring: Transcription & Translation

  • Translation video (after 5:30)In translation, the information contained the sequence of nucleotides is transformed into a sequence of amino acids (building blocks of proteins). When you are just beginning to learn a foreign language & you need to translate a word or phrase from English, you need a dictionary.

    Organisms carry around a dictionary that they use when translating RNA sequences into protein sequences. This dictionary exists in the form of a series of molecules called tRNA's. Pg. 49 Protein Synthesis notes

  • The information in the mRNA is translated by a ribosome (made of rRNA), who reads it.

    Transfer RNA (tRNA) enters the ribosome to drop off (transfer) an amino acid (building blocks of proteins).

    A chain of amino acids (polypeptide) then exits the ribosome & folds into a protein.

    Pg. 49 Protein Synthesis notes

  • CODON: 3 consecutive nucleotides in mRNA.Each codon codes for a single amino acid

    ANTICODON: 3 consecutive nucleotides in tRNA that pair to a codon.Pg. 49 Protein Synthesis notes

  • Pg. 49 Protein Synthesis notesHow do you use (read) the Codon Table?

    Example: tRNA anticodon = UCAWhat is the 1st base? 2nd base?3rd base?

    What amino acid did UCA anticodon code for?Amino Acids

  • How does tRNA know when to begin & end translating amino acids?

    Start Codon:Tells the tRNA to start translating the mRNAAUG (mRNA) methionine (Met) or start codonStop Codon:Tells the tRNA to stop translating the mRNAUAA, UAG or AGA (tRNA) stop codonsPg. 49 Protein Synthesis notesPer. 6 start, Fri

  • Protein SynthesisPg. 49 Protein Synthesis notes

  • Pg. 65 DNA Coloring: Transcription & TranslationGet in to your lab groups & use colored pencils of the following colors:Orange, dark green, purple, yellow, brown, light green & red

    Read through the information about Translation & follow the directions to color-code the picture on back properly!!!

  • Turn in:DNA Extraction Lab Applications Write-upHave out:DNA Coloring: T & T wkst Protein Synthesis wkstPick up:Codon Table Agenda:Protein Synthesis notes: Making ProteinsWhat happens when T & T goes wrongPractice Test: Protein Synthesis Quiz Homework:AIMS Review (Pg. 5 Protein Synthesis) Fri, 12/13DNA Replication & Protein Synthesis Test Fri, 12/13Biology Fun Fact:Proteins are one of the important constituents of the red blood cells, hemoglobin (which comes from heme meaning iron & globin meaning proteins). About 97% of the dry content of RBCs is made of proteins.Week #9 (12/9-12/13)Warm Up Thurs, 12/12:- Review of Translation (3, 4, 5, 7 & 8)Unit Learning Goal: I will understand the workings of DNA & RNA Replication & Protein Synthesis.

  • Pg. 49 Protein Synthesis notesGlue your Codon Table in to Pg. 66.

    DNA Coloring: T & T:Now answer questions #3, 4, 5, 7 & 8 at the bottom.Amino Acids

  • On the Protein Synthesis wkst, read direction #3.Complete questions #3, 9, 13 & 23.Lets discuss correct answers!Now, read direction #4.Complete questions #4, 10, 14 & 24.Lets discuss correct answers!Finally, read direction #5.Complete questions #6 & 15-20. Lets discuss correct answers!

    Pg. 66 Protein Synthesis wkst & Codon Table

  • Pg. 49 Protein Synthesis notesEasy as 1,2,3,4 & 5!

    A section of DNA opens

    Free-floating nucleotides connect up to 1 side of the DNA making mRNA. (Transcription)

    The mRNA travels out of the nucleus & into the cytoplasm.

    A ribosome reads the mRNA & pairs the base pairs of mRNA with the base pairs of tRNA, which drop off amino acids to make a chain. (Translation)

    The chain of amino acids exits the ribosome & folds up = PROTEIN!

  • Proteins are made of 20 different amino acids.

    The sequence of amino acids varies between each protein & tells it how to fold, giving the protein its shape.Pg. 49 Protein Synthesis notes

  • DNARNAProteinReplicationTranscriptionTranslationHow DNA determines everything in our body?Pg. 46 How DNA Determines Everything! Concept Map

  • Pg. 66 Protein Synthesis wkst & Codon Table

  • TACGCTTTACAGATTDNAMake a proteinPg. 66 Protein Synthesis wkst & Codon Table

  • TACGCTTTACAGATTDNAAUGCGAAAUGUCUAAmRNAUACGCUUUACAGAUUMetValArgAsnSTOPtRNAFOLDPROTEIN!Pg. 66 Protein Synthesis wkst & Codon TableFrom the DNA, determine your mRNA recipe.

    From the mRNA, determine your tRNA recipe.

    Finally, from the tRNA, use your Codon Table to determine the order of your polypeptide chain of amino acids (folded up = protein)!

    When finished, raise your hand for a SOC!

  • MUTATION (an error in DNA) can occur with just a single base pair change.Base Substitution: when a base pair is substituted/ replaced by a base pair in error.If it occurs in a specific location, for instance, in the CFTR gene, it will cause cystic fibrosis.

    Base Deletions & Insertions: when base pairs are deleted/removed or inserted/added from the genePg. 50 Protein Synthesis notes

  • MUTATIONS OCCUR DURING DNA REPLICATION.

    USUALLY THE ERROR IS EDITED OUT BY THE DNA POLYMERASE (proof-reader or spell check) & FIXED BY THE REPAIR ENZYMES.

    MUTAGENS - An environmental factor that damages DNAAre most likely to blame for mutations (cancers)EX: ultraviolet (UV) rays & chemicals in cigarette smokePg. 50 Protein Synthesis notes

  • PEOPLE WITH DEFECTIVE DNA REPAIR ENZYMES

  • DNA contains the instructions for making an organism, including YOU!!!!Your DNA determines how you look, what blood type you have, even your tendency to get some diseases.Each chromosome contains a strand of DNAAlmost every cell in your body contains the same DNA & same genes.

  • Each pair needs to pick up a red, blue, yellow & green colored pencil.Re-read through each Unit Objective

    If you are SUPER DUPER CONFIDENT & CAN APPLY/ EXPLAIN AN EXAMPLE for that objective, put a blue SMILEY FACE in that square.

    If you are CONFIDENT that you know/can do that objective, put a green CHECK MARK in that square.GO! cause you KNOW!

    If you HAVE HEARD OF/KIND OF KNOW that objective, put a yellow STAR in that square.HAULT or WAITnot sure!

    If you HAVE NEVER HEARD OF/DO NOT KNOW that objective, put a red QUESTION MARK in that square. STOP! I have no idea!S8 DNA Replication Pre-TestThe End

  • Have out:AIMS Packet (Pg. 5 for a SOC)Agenda:DNA Replication & Protein Synthesis TestGrade/Attendance Report to determine whether you have to take FE or notHomework:Study for Final Exam Tues, 12/17 (Per. 1, 3, 5) & Wed, 12/18 (Per. 2, 4, 6)Biology Fun Fact:When the body is deprived of glucose, it starts using the stored fats & proteins as energy source. Excess catabolism of proteins is harmful as it can weaken the immune system & break down tissues, such as muscle.Week #9 (12/9-12/13)Warm Up Fri, 12/13:- Bigfoot DNA NewsUnit Learning Goal: I will understand the workings of DNA & RNA Replication & Protein Synthesis.

  • You may use your AIMS Review packet as a resource while you test!NO TALKING!Read questions CAREFULLY!When finished, turn your test in to the Hmwk Bin & pick up your Final Exam GRADE & ATTENDANCE REPORT.T? DNA Replication & Protein Synthesis Test

  • Protein Synthesis Activity

  • PHARMACUTICAL BIOTECHNOLOGY-Uses bacteria to produce medicines & enzymes for food production.-Chymosin (used to make cheese)-Insulin-Vaccines-Identifies new potential medicines

  • AGRICULTURAL BIOTECHNOLOGY-Introduces new traits into plants to bring about a specific benefit. -growing plants with more nutrients -plants being more resistant to pests -grow more food on less land -grow more nutritious food

  • TO HELP THE ENVIRNONMENT-fewer chemical applications-reduced killing of beneficial insects-less need to add fertilizers-reduced chemical runoff in lakes & streams.-decreased soil erosion

  • INDUSTRIAL BIOTECHNOLOGY-Oil eating bacteria-Biodegradable plastic-Silk-Vitamins

  • DNA FINGERPRINTING-No, not like an actual finger print.-It identifies you better than a fingerprint

  • WHAT CELLS IN YOUR BODY DO NOT CONTAIN ALL OF YOUR DNA.

  • YOUR GAMETES (only have half) AND MATURE RED BLOOD CELLS (dont have any).

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