BELLWORKOBJ: 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

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 didn’t do it or have it: you will help clean up the classroom and do any menial tasks I have for you.

RNA & Central Dogma

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?

DNA vs RNA

Deoxyribonucleic Acid

•How many nucleotides?

•3 parts of a nucleotide?

•What does the “B” stand for?

DNA vs RNA

Deoxyribonucleic Acid

•How many nucleotides?

•3 parts of a nucleotide?

•What does the “B” stand for?

Ribonucleic Acid

What’s the

difference?

OH!

Remember this?

Structure is related

to function!

What are DNA’s 2 functions?

RNA Structure Notes

•RIBOSE is the sugar in RNA nucleotides (instead of deoxyribose)

RNA Structure Notes

•RIBOSE is the sugar in RNA nucleotides (instead of deoxyribose)

•Uracil (U) is used instead of T

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

Vote by sign language:

DNADNA

AGCCTGCTATCGGACGAT

RNA

RNA RNA

NA NA

Try this

What might it look like if you turned this double stranded DNA molecule into an RNA copy?

AGTTCGATCAAGCT

RNA: UCAAGCUWhich DNA strand would this RNA be the COMPLEMENT of?

Try this

What might it look like if you turned this double stranded DNA molecule into an RNA copy?

AGTTCGATCAAGCT

RNA: UCAAGCUWhich DNA strand would this RNA be the COMPLEMENT of?

Do the RNA complement for the bottom DNA strand

AGUUCGA

DNA vs RNA

RNA has a

different structure

… predict

it’s functions (jobs)

Hint: other names for RNA

messenger RNA

ribosomal RNA

transfer RNA

Central Dogma (“Big Idea”) of Biology

DNA

RNA

Protein

DNA stores

information to run

cell

Proteins

actually DO the

work in the cell

RNA’s function

is to make

proteins!

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.

Types of RNA

mRNA: messenger RNA makes a copy (message) of the information stored in DNA & moves the info out of the nucleus! (DNA doesn’t leave nucleus)

Codons are 3 letter “words” that make up the message- it’s a recipe for a protein

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 proteinrRNA folds into 2

subunits (large & small)

Together, they make the ribosome!

Realistic image of rRNA folded

into a ribosome

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!

Turn to your neighbor

Summarize the 3 types of RNA and how each is related to protein synthesis

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

Amino Acids are the small subunits

of ___________

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

Made with

Uracil (U) instead of

T:___________

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

The central dogma of biology says that ______ RNA

Protein

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

Transports amino acids to the ribosome:

___________

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

Reads mRNA and assembles

amino acids into a chain:

___________

Practice Putting It All Together

Which of the following am I showing/describing?DNA mRNA rRNA tRNA

Protein

A copy of the information in DNA that can be taken

out of the nucleus:___________

Why not skip the DNA step?

DNA

RNA

Protein

DNA stores

information to run

cell

Proteins

actually DO the

work in the cell

RNA’s function

is to make

proteins!

Closure- Structure & Function of DNA & RNA

DNA

RNA

*When you are finished work on the DNA/RNA worksheet*