1. which 3 elements are found in all of the molecules of life? 2....
TRANSCRIPT
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1. Which 3 elements are found in all of the molecules of life?
2. What is dehydration synthesis?
3. How might living things obtain the atoms needed to make the molecules of life?
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• Unit 1 Assessment is on Friday, September 28
• Covers chapters 1-2
Logistics
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• Macro = large
• There are many important molecules for life
Macromolecules
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Carbon• Carbon can
make 4 covalent bonds, which allows it to make relatively stable molecules
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Carbon
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Monomers and Polymers
• Polymerization is the process of putting monomers together to make polymers
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Monomers and Polymers
• When the molecules of life polymerize, sometime water is lost during dehydration synthesis
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CarbohydratesUsed for energy and structure
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Carbohydrates
Always have the ratio: 1 carbon: 2 hydrogen: 1 oxygen
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Carbohydrate monomers: monosaccharides
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Carbohydrate dimers: disaccharides
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Carbohydrate polymers: polysaccharides in plants
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Carbohydrate polymers: polysaccharide in animals
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ProteinsUsed for structure and function
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Protein Monomer: Amino Acid
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Amino acids are connected by peptide bonds
Protein polymer: Polypeptide Chain
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Amino acids are connected by peptide bonds
What kind of reaction is this?
Nucleic acid monomers: nucleotide
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Protein Structure
Functional proteins are made of multiple polypeptides
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Denatured Proteins
The structure of proteins determines the function
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Lipids
Used for energy
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Lipid monomers: fatty acids
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Lipid polymers: triglycerides
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Lipid polymers: animal fats
• Animal fats are solid because they are made of saturated fatty acids, which are more compact
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Lipid polymers: plant oils
• Plant oils are liquid because they are made of unsaturated fatty acids, which are not as compact
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Nucleic Acids
Used as instructions
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Nucleic acid types: RNA and DNA
RNA uses ribose sugar, DNA uses deoxyribose
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Nucleic acid monomers: nucleotide
Nucleotides have three parts:
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Nucleic acid polymers: RNA and DNA
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• Use a laptop, or lab computer, to login to Pearson
• You have been assigned the Interactivity: Understanding Macromolecules
• If you do not finish it is homework DUE WEDNESDAY
Carbon Compounds
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• MAKE SURE YOU CLICK ON THE ORANGE HEADING ON REALIZE
Carbon Compounds