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Review items for b asic chemistry. Objectives . Distinguish between organic and inorganic compounds Differentiate between a salt, an acid, a base Explain the importance of water to maintain homeostasis and provide examples of the roles of water
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Objectives • Distinguish between organic and inorganic compounds • Differentiate between a salt, an acid, a base • Explain the importance of water to maintain homeostasis and provide examples of the roles of water • Compare and contrast carbohydrates, lipids, proteins, and nucleic acids in terms of structure and function • Compare and contrast structure and function of DNA and RNA • Explain the roles of enzymes • Explain the importance of ATP in the body
Review • Matter • Energy • Kinetic energy • Mechanical energy • Thermal energy • Electrical energy • Radiant energy • Potential energy • Chemical energy
Chemical reactions • synthesis
biochemistry • Inorganic compounds- non carbon containing ex) water, salts, some acids • Organic compounds- carbon containing compounds ex) proteins, nucleic acids, lipids, carbohydrates Exception to rule: carbon dioxide CO2
Properties of water that are important to the human body1. high heat capacity2. polarity/solvent properties3. chemical reactivity-hydrolysis reaction4.cushioning
Acid- donates H+ ions to solution Base- donates OH- ions to solution
Neutralization reaction Acid-base balance is carefully regulated by the kidneys, lungs, and buffers
Building and breaking polymers Dehydration reaction Hydrolysis reaction Builds polymers Breaks polymer chain Removes water Adds water
Carbohydrate Lipid protein Nucleic acid Elements C, H, O C, H, O (P) C, H, N, O (S) C, H, O, N, P Monomer Monosaccharide Fatty_acid or sterol Amino acid Nucleotide Polymer Polysaccharide Triglyceride Polypeptide DNA or RNA function Energy, support Stored energy, membrane Structure, catalysts, etc Allow reproduction of traits Unique Characteristics
. Carbohydrateshydrophilic Monosaccharide Disaccharide Polysaccharide C:H:O = 1:2:1 ratio C6 H12 O6
Proteins Amino acid= monomer Polypeptide=polymer
Nucleic acids Monomer = nucleotide Nucleotide= sugar + phosphate+ base
Lipidshydrophobic Fats: Saturated=solid at room temp no double bonds Unsaturated=liquid at room temp at least one double bond in fatty acid chain
Review • Read over summary items pg 56-58 • Complete all review questions • All answers should be given in complete sentences to assist your understanding and studies Consider the “At the Clinic” essay questions and think about how you might answer them if you encountered them again.