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BELLWORK OBJ: SWBAT COMPARE & CONTRAST DNA WITH RNA 1. What does DNA stand for? 2. Based on your answer to #1, predict what RNA stands for? 3. Do all living.

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Presentation on theme: "BELLWORK OBJ: SWBAT COMPARE & CONTRAST DNA WITH RNA 1. What does DNA stand for? 2. Based on your answer to #1, predict what RNA stands for? 3. Do all living."— Presentation transcript:

1 BELLWORK OBJ: SWBAT COMPARE & CONTRAST DNA WITH RNA 1. What does DNA stand for? 2. Based on your answer to #1, predict what RNA stands for? 3. Do all living things have DNA, why or why not? 4. What other materials will you bring tomorrow to put on your science fair poster? Take out your slates

2 If you do not bring sci. fair board materials tomorrow: -if you have already built your FINAL board, you may work on other classwork. -if it is at home or you didnt do it or have it: you will help clean up the classroom and do any menial tasks I have for you.

3 RNA & Central Dogma

4 Look at the compare/contrast RNA and DNA diagram in front of you. With your partner write down at least 3 differences and 3 similiarities between DNA and RNA on your slate. Think: Why might these differences exist?

5 DNA vs RNA Deoxyribonucleic Acid How many nucleotides? 3 parts of a nucleotide? What does the B stand for?

6 DNA vs RNA Deoxyribonucleic Acid How many nucleotides? 3 parts of a nucleotide? What does the B stand for? Ribonucleic Acid Whats the difference? OH!

7 Remember this? Structure is related to function! What are DNAs 2 functions?

8 RNA Structure Notes RIBOSE is the sugar in RNA nucleotides (instead of deoxyribose)

9 RNA Structure Notes RIBOSE is the sugar in RNA nucleotides (instead of deoxyribose) Uracil (U) is used instead of T

10 RNA Structure Notes RIBOSE is the sugar in RNA nucleotides (instead of deoxyribose) Uracil (U) is used instead of T RNA is usually single- stranded

11 Vote by sign language: DNA AGCCTGCTA TCGGACGAT RNA NA

12 Try this What might it look like if you turned this double stranded DNA molecule into an RNA copy? AGTTCGA TCAAGCT RNA: UCAAGCU Which DNA strand would this RNA be the COMPLEMENT of?

13 Try this What might it look like if you turned this double stranded DNA molecule into an RNA copy? AGTTCGA TCAAGCT RNA: UCAAGCU Which DNA strand would this RNA be the COMPLEMENT of? Do the RNA complement for the bottom DNA strand AGUUCGA

14 DNA vs RNA RNA has a different structure… predict its functions (jobs) Hint: other names for RNA messenger RNA ribosomal RNA transfer RNA

15 Central Dogma (Big Idea) of Biology DNA RNA Protein DNA stores information to run cell Proteins actually DO the work in the cell RNAs function is to make proteins!

16 Why are proteins so important? Proteins are made of tiny subunits…what are they called? What are some functions of proteins? (Hint: ) Chemical Reactions (enzymes) Immune System (antibodies) Growth & Development (hormones) etc.

17 Types of RNA mRNA: messenger RNA makes a copy (message) of the information stored in DNA & moves the info out of the nucleus! (DNA doesnt leave nucleus) Codons are 3 letter words that make up the message- its a recipe for a protein

18 Types of RNA rRNA: ribosomal RNA folds into a ribosome which reads the mRNA codons and connects amino acids into a chain that will become a protein rRNA folds into 2 subunits (large & small) Together, they make the ribosome! Realistic image of rRNA folded into a ribosome

19 Types of RNA tRNA: transfer RNA transports amino acids to the ribosome, and uses an anti-codon to match the correct amino acid to the correct mRNA codon. It then transfers amino acids to the growing chain. tRNA is T-shaped!

20 Turn to your neighbor Summarize the 3 types of RNA and how each is related to protein synthesis

21 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein

22 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein Amino Acids are the small subunits of ___________

23 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein Made with Uracil (U) instead of T: ___________

24 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein

25 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein The central dogma of biology says that ______ RNA Protein

26 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein Transports amino acids to the ribosome: ___________

27 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein

28 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein

29 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein Reads mRNA and assembles amino acids into a chain: ___________

30 Practice Putting It All Together Which of the following am I showing/describing? DNAmRNArRNAtRNAProtein A copy of the information in DNA that can be taken out of the nucleus: ___________

31 Why not skip the DNA step? DNA RNA Protein DNA stores information to run cell Proteins actually DO the work in the cell RNAs function is to make proteins!

32 Talk to your neighbor & write down your answer… If you can code the same messages in mRNA….why doesnt the cell forget about DNA altogether and use RNA as the primary genetic molecule? Propose logical possibilities why cells evolved to use DNA. DNA RNA Protein

33 Viruses & RNA Many viruses, like the flu & HIV code their genes in RNA. What do you know about these two viruses? What makes their genes different from the genes in plants and animals?

34 RNA is less stable than DNA RNA genes are why many viruses mutate quickly (new flu shot every year) DNA genes are more stable, so plants and animals evolve more slowly DNA is more protected as a double stranded molecule inside of the nucleus

35 Closure- Structure & Function of DNA & RNA DNARNA *When you are finished work on the DNA/RNA worksheet*


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