2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids?...
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Transcript of 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids?...
![Page 1: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/1.jpg)
2.3 Carbon-Based Molecules
LEQ: What is the relationship between proteins and nucleic acids?
• Reading: 32.1, 2.3; Quiz tuesday; test next monday
• Activator: ruminations– “DNA neither cares nor knows. DNA just is.” Richard
Dawkins.
– In your group, discuss what this quote might mean
• Key terms – protein, nucleic acid
![Page 2: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/2.jpg)
2.3 Carbon-Based Molecules
Proteins are responsible for nearly every task that a cell performs.
• Monomer: amino acid– Common structure, unique R groups– left: general amino acid structure– right: serine is polar, hydrophilic
![Page 3: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/3.jpg)
2.3 Carbon-Based Molecules
– Polypeptides consist amino acids linked by peptide bonds
– Information-rich.
![Page 4: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/4.jpg)
2.3 Carbon-Based Molecules
![Page 5: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/5.jpg)
2.3 Carbon-Based Molecules
![Page 6: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/6.jpg)
2.3 Carbon-Based Molecules
• Polypeptides differ in number and order of amino acids.– characteristic sequence; changes alter function– Amino acids interact to give a protein its shape.
hydrogen bond
Hemoglobin
![Page 7: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/7.jpg)
2.3 Carbon-Based Molecules
The information & function of proteins is encoded in the sequence of nucleic acids.
• RNA– Protein synthesis– Chemical reactions– Gene regulation….
• DNA– Encodes biological
information
![Page 8: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/8.jpg)
2.3 Carbon-Based Molecules
![Page 9: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/9.jpg)
2.3 Carbon-Based Molecules
A phosphate group nitrogen-containing molecule,called a base
deoxyribose (sugar)
• Monomer (multi-part): nucleotide
![Page 10: 2.3 Carbon-Based Molecules LEQ: What is the relationship between proteins and nucleic acids? Reading: 32.1, 2.3; Quiz tuesday; test next monday Activator:](https://reader035.fdocuments.us/reader035/viewer/2022062802/56649e905503460f94b95385/html5/thumbnails/10.jpg)
2.3 Carbon-Based Molecules
• The nitrogen containing bases are the only difference in the four nucleotides.
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2.3 Carbon-Based Molecules
• Polynucleotides (left) have a unique sequences of bases:– Hydrogen bonding– DNA is double stranded (right)
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2.3 Carbon-Based Molecules
Genes store the information necessary to assemble proteins.
• A gene is a segment of DNA that stores genetic information on a chromosome.– mutation
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2.3 Carbon-Based Molecules
Summary:
• Explain how both nucleic acids and proteins are polymers. Be sure to describe the monomers that make up the polymers.