Presentation is loading. Please wait.

Presentation is loading. Please wait.

Start-up Introduction

Published byRoberta Stone Modified over 6 years ago

Similar presentations

Presentation on theme: "Start-up Introduction"— Presentation transcript:

1 Start-up Introduction
Information, Please DNA contains the information that a cell needs to carry out all of its functions. In a way, DNA is like the cell’s encyclopedia. Suppose that you go to the library to do research for a science project. You find the information in an encyclopedia. You go to the desk to sign out the book, but the librarian informs you that this book is for reference only and may not be taken out.

2 Chapter 12-3 - Part I Start-up for 1/14/14
1. Why do you think the library holds some books for reference only? 2. If you can’t borrow a book, how can you take home the information in it? 3. All of the parts of a cell are controlled by the information in DNA, yet DNA does not leave the nucleus. How do you think the information in DNA might get from the nucleus to the rest of the cell?

3 Chapter 12-3 Objectives, Pgs. 300-306
Objectives - Students will: Identify RNA and the three types Identify the locations and functions of the 3 types of RNA Compare three differences between DNA and RNA Summarize the two stages of protein synthesis Identify the mRNA codons for a DNA strand

4 Ribonucleic acid What is RNA? Organic Molecule – made of carbon
Obj. A) Identify RNA and the three types What is RNA? Ribonucleic acid Organic Molecule – made of carbon Nucleic Acid Types = mRNA = messenger tRNA= transfer rRNA = ribosomal

5 RNA Obj. B) Identify the locations and functions of the 3 types of RNA
3 types are Ribosomal RNA Transfer RNA Messenger RNA also called which functions to also called which functions to also called which functions to Combine with proteins Carry Instructions mRNA Bring amino acids to ribosome tRNA rRNA from to to make up DNA Ribosome Ribosomes

6 RNA DNA DNA Ladder RNA ½ Ladder
Obj. C) Compare three differences between DNA and RNA Analyze the DNA and RNA. Can you see differences? DNA RNA Uracil Thymine Thymine Uracil Deoxyribose Ribose Deoxyribose Ribose DNA Ladder RNA ½ Ladder

7 Obj. C) Compare three differences between DNA and RNA
GCAT GCAU DNA 1. Double strand 2. Deoxyribose sugar 3. Contains thymine 4. Very large molecule RNA 1. Single strand 2. Ribose sugar 3. Contains uracil – replaces thymine 4. Small molecule

8 Obj. D) Summarize the two stages of protein synthesis
Stages include Transcription Translation Where? Summarized as Summarized as Nucleus Ribosome mRNA retrieves DNA message to make proteins tRNA translates mRNA message into proteins

9 Stage 1 :Transcription:
Obj. D) Summarize the two stages of protein synthesis Stage 1 :Transcription: mRNA is produced from DNA In nucleus Steps: DNA untwists and unzips mRNA codons line up Codon = 3 nitrogen bases on mRNA

10 Obj. E) Identify the mRNA codons for a DNA strand
Remember mRNA has: Uracil instead of thymine GCAU DNA Codons GGAtCAAGc I I c c u a g u u c g I mRNA How many codons are present in the mRNA strand? Three

11 Answer the following questions while watching the video.
Obj. D) Summarize the two stages of protein synthesis Answer the following questions while watching the video. Adenine (DNA and RNA) Cystosine (DNA and RNA) Guanine(DNA and RNA) Thymine (DNA only) Uracil (RNA only) What molecule provides instructions to make proteins? What type of RNA receives a copy of these instructions? RNA polymerase DNA mRNA DNA Transcription Video – Prentice Hall What base replaces thymine in RNA? Identify the mRNA bases for the following DNA bases: TACCAACCT

12 Stage 2 = Translation = Conversion of the message (mRNA Code)
Obj. D) Summarize the two stages of protein synthesis Stage 2 = Translation = Conversion of the message (mRNA Code) Into a protein By the ribosome

13 Translation 3. tRNA delivers the AA to the ribosome
Obj. D) Summarize the two stages of protein synthesis Translation 3. tRNA delivers the AA to the ribosome 2. tRNA picks up an amino acid mRNA arrives at the Ribosome – * AUG is the start codon

14 Translation Completed -
Obj. D) Summarize the two stages of protein synthesis Translation Completed - 5. Polypeptide Chain grows = protein 3. Peptide bond forms 4. tRNA leaves 1. tRNA delivers amino acid 4. tRNA leaves Completing the Polypeptide Stops at STOP codon 3 STOP codons exist 2. Ribosome joins amino acids

15 Understanding Check 1. What are the three types of RNA?
2. Identify the complementary bases for each: 3. When the anticodon for tRNA arrives at the ribosome, what does tRNA deliver? DNA T A C G G C A T A C A G mRNA tRNA

Download ppt "Start-up Introduction"

Similar presentations

RNA Transcription.

RNA Transcription.
The Structure of RNA RiboNucleic Acid

The Structure of RNA RiboNucleic Acid
12-3: RNA AND PROTEIN SYNTHESIS Biology 2. DNA double helix structure explains how DNA can be copied, but not how genes work GENES: sequence of DNA that.

12-3: RNA AND PROTEIN SYNTHESIS Biology 2. DNA double helix structure explains how DNA can be copied, but not how genes work GENES: sequence of DNA that.
RNA and Protein Synthesis. DNA to RNA to Protein Focus Questions: –How does the message coded in the base sequence of DNA eventually create a protein?

RNA and Protein Synthesis. DNA to RNA to Protein Focus Questions: –How does the message coded in the base sequence of DNA eventually create a protein?
Interest Grabber DNA contains the information that a cell needs to carry out all of its functions. In a way, DNA is like the cell’s encyclopedia. Suppose.

Interest Grabber DNA contains the information that a cell needs to carry out all of its functions. In a way, DNA is like the cell’s encyclopedia. Suppose.
RNA & Protein Synthesis.

RNA & Protein Synthesis.
RNA and protein synthesis. RNA Single strand of nucleotides Sugar is ribose Uracil instead of thymine.

RNA and protein synthesis. RNA Single strand of nucleotides Sugar is ribose Uracil instead of thymine.
THE MOST IMPORTANT BIOLOGY LESSON OF THE YEAR How does DNA work?

THE MOST IMPORTANT BIOLOGY LESSON OF THE YEAR How does DNA work?
Chapter 12 Making Proteins. Differences between RNA and DNA DNA = double strand; RNA = single strand RNA contains Ribose instead of deoxyribose. RNA uses.

Chapter 12 Making Proteins. Differences between RNA and DNA DNA = double strand; RNA = single strand RNA contains Ribose instead of deoxyribose. RNA uses.
Chapter 11 11.2 From DNA to Protein.

Chapter From DNA to Protein.
RNA and Protein Synthesis. Write these terms in your journal Ribosome — makes proteins Ribosome — makes proteins RNA polymerase — enzyme that puts together.

RNA and Protein Synthesis. Write these terms in your journal Ribosome — makes proteins Ribosome — makes proteins RNA polymerase — enzyme that puts together.
RNA and Protein Synthesis

RNA and Protein Synthesis
Interest Grabber Information, Please DNA contains the information that a cell needs to carry out all of its functions. In a way, DNA is like the cell’s.

Interest Grabber Information, Please DNA contains the information that a cell needs to carry out all of its functions. In a way, DNA is like the cell’s.
RNA/ TRANSCRIPTION / TRANSLATION

RNA/ TRANSCRIPTION / TRANSLATION
How does DNA control cell activities?. Protein Production The sequence of nucleotides in DNA contains instructions for producing proteins. The sequence.

How does DNA control cell activities?. Protein Production The sequence of nucleotides in DNA contains instructions for producing proteins. The sequence.
Objective: to understand RNA and transcription and translation 12.3.

Objective: to understand RNA and transcription and translation 12.3.
RNA & Protein Synthesis. RNA and Protein Synthesis Genes are coded DNA instructions that control the production of proteins within the cell DNA codes.

RNA & Protein Synthesis. RNA and Protein Synthesis Genes are coded DNA instructions that control the production of proteins within the cell DNA codes.
Chapter 12-3: RNA & Protein Synthesis Essential Questions:  What are 3 types of RNA?  What is the function of 3 types of RNA?  What happens during transcription?

Chapter 12-3: RNA & Protein Synthesis Essential Questions:  What are 3 types of RNA?  What is the function of 3 types of RNA?  What happens during transcription?
RNA and Protein Synthesis Chapter 12-3. How are proteins made? In molecular terms, genes are coded DNA instructions that control the production of.

RNA and Protein Synthesis Chapter How are proteins made? In molecular terms, genes are coded DNA instructions that control the production of.
Placed on the same page as your notes Warm-up pg. 48 Complete the complementary strand of DNA A T G A C G A C T Diagram 1 A T G A C G A C T T A A C T G.

Placed on the same page as your notes Warm-up pg. 48 Complete the complementary strand of DNA A T G A C G A C T Diagram 1 A T G A C G A C T T A A C T G.

Similar presentations

Ads by Google