biochemistry review if you learned anything from this unit, you should have learned…
Post on 19-Dec-2015
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Properties of Water Solvent High heat capacity Ice floats (density anamoly) Cohesion Surface tension adhesion
Organic Molecules Macromolecules Carbon forms 4 covalent bonds Functional groups 4 classes
Monosaccharides Lipids Proteins Nucleic Acids
Reactions of life Dehydration
Releases water Synthesis: builds
organic polymers Anabolic:
endergonic
Disaccharides Glycosidic linkage Sucrose=glucose & fructose Lactose= glucose & galactose Glucose= glucose & glucose
Polysaccharides Starch=energy storage in plants Glycogen=energy storage in animals Cellulose=walls of plant cells Chitin=walls of fungus and exoskeleton of
arthropods
Lipids Insoluble in water Nonpolar 3 major groups
Triglycerides Saturated Unsaturated (mono or poly)
Phospholipids Steroids (ring shaped)
Proteins Amino acid monomer Peptide bond (polypeptides) Wide variety of functions
Structural Storage Transport Defensive Enzymes
Tertiary structure (between R groups) Hydrogen bonding Ionic bonding Hydrophobic effect Disulfide bridges Covalent bonding
DNA vs. RNA RNA
Adenine, Cytosine, Guanine, Uracil
Single helix Ribose Located in
nucleus and cytoplasm
DNA Adenine,
Cytosine, Guanine, Thymine
Double helix Deoxyribose Located in
nucleus
Activation & Inhibition Cooperativity: Allosteric sites: different from active site
Inhibition: negative feedback Activitor: positive feedback
Competitive inhibition