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Carbon
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Isomer Examples You Tube Video of Optical Isomerism
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Contrast Caraway and Spearmint ISOMERS (get taste samples)
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Thalidomide Isomers Treated nausea of women in 1950’s Changed to isomer form in the body that caused a birth defect
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ISOMERS L-dopa (Precursors to the neuro- transmitter dopamine) to treat Parkinson’s –but D-dopa causes (“D” polarize light to R.) deficiency of white blood cells Allegra is the isomer of Seldane (for nose congestion) Lexapro is the active isomer of Celexa (antidepressants)
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CARBON CAN FORM VARIOUS BONDS
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COMMON ELEMENTS OF MACROMOLECULES CHNOPS Carbon – hydrogen- nitrogen-oxygen- phosphorus-sulfur
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FUNCTIONAL GROUPS: know them Group of atoms attached to a carbon skeleton involved in chemical reactions Five groups are polar, hydrophilic (water-loving) and are soluble in water The sixth group, the methyl group, is nonpolar, and nonreactive
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ADD: sulfhydryl group -SH
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FUNCTIONAL GROUP: HYDROXYL GROUP -OH Organic compounds containing –OH groups are called alcohols C 2 H 5 OH ethanol (or ethyl alcohol): molecular formula and structural formula
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FUNCTIONAL GROUP: CARBONYL GROUP -C=O If at the end, the compound is called an aldehyde (like acetaldehyde in ripe fruit). If in the middle, it is called a ketone (broken down in liver, used in brain) Commonly in sugars.
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TWO TYPES OF CARBONYLS
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FUNCTIONAL GROUP: CARBOXYL GROUP -COOH or H acts as an acid (carboxylic acid) to donate H+ EX: acetic acid CH 3 COOH
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FUNCTIONAL GROUP: AMINO GROUP -NH 2 Acts as a base by picking up a H+ (to make NH 3 ) Compounds with amino groups are called amines EX: amino acids are building blocks of protein
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FUNCTIONAL GROUP: PHOSPHATE GROUP -OPO 3 -2 Compounds with phosphates are called organic phosphates Involved in energy transfer, ATP
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FUNCTIONAL GROUP: METHYL GROUP -CH 3 Compounds with methyl groups are called methylated compounds EX: Found in DNA
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ADD THIS FUNCTIONAL GROUP: Sulfhydryl group –C–SH or R–SH (S takes the place of O in a –OH group) (less polar) -SH group can also be referred to as a thiol group FYI: Smell like garlic, put in natural gas for an odor Methanethiol Cysteine
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PRESENTATION: FUNCTIONAL GROUP - 7points A. functional group B. name compound it forms C. depict the structural formula D. show how to remember it E. Creative F. Easy for classmates to remember You tubeYou tube G. polar or nonpolar EXTRA CREDIT: if you make a visual of your functional group for class display
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WILL DO WORKSHEET “Identifying Functional Groups” Work hard like Larry here.
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4 Types of Macromolecules Proteins Nucleic Acids Carbohydrates Lipids
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Macromolecule or Polymer a large molecule consisting of many identical or similar subunits strung together
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Polymer A large molecule (macromolecule) consisting of many smaller molecules (monomers) into chains
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Monomers the subunits that serve as the building blocks
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Polymerization Joining monomers to make a polymer LINK Animation of a Condensation PolymerizationAnimation of a Condensation Polymerization
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Dehydration Synthesis A.K.A. polymerization Dehydration Synthesis You Tube
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Dehydration Synthesis Start with small molecules (monomers), by removing water end with large molecules (polymers)
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Dehydration Synthesis Monomers (small molecules) are linked together by a process that takes out a molecule of water to form a polymer (macromolecule).
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Hydrolysis
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Polymers are disassembled to monomers by hydrolysis in which bonds are broken by the addition of water
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Hydrolysis Start with large molecules (polymer) add water and end with small molecules (monomer)
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Videos You Tube Dehydration Synthesis and Hydrolysis You Tube Dehydration Synthesis and Hydrolysis Easy animations Making and Breaking
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MACROMOLECULES Receive chart of macromolecules and tips Carbohydrates Lipids Proteins Nucleic Acids
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Carbohydrates are Made Of: C : H : O or CH 2 O 1 : 2 : 1 EX: C 6 H 12 O 6 glucose- most common monosaccharide C 12 H 22 O 11 = 2 C 6 H 12 O 6 − H 2 O
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What functional groups are in carbohydrates?
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Carbonyl aldehyde or ketone Hydroxyl
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Carbohydrates “Sugars” Names for Carbohydrates end in –ose Monomers: monosaccharides
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Why would you choose one model over another? Structural formula Space- filling model Abbreviated structure
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Monomer of Carbohydrates: Monosaccharides Simple sugar -main use in body: fuel EX: glucose – most common galactose –milk sugar fructose – fruit sugar
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Carbohydrates Monosaccharides-single sugars – the monomer of carbos Disaccharides-double sugars Polysaccharides-many sugars
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Carbohydrate Rings Monosaccharide Single sugar Disaccharide Double sugar
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Disaccharides
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Dehydration Synthesis of Carbohydrates What is removed? From what functional group?
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Glycosidic Bond: covalent bond joining monosaccharides gly- or glu- are prefixes for “sweet”
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Polysaccharide: many sugars
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Polysaccharides macromolecules with a few to 1000 monosaccharides linked together
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Polysaccharides Storage Polysaccharides: starch (from plants) and glycogen (from animals) Structural Polysaccharides: chitin (in fungi cell walls and in exoskeleton of arthropods) and cellulose (in plant cell walls)
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Starch Foods found in plants: Potatoes, wheat, corn, rice Found in plant roots
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Glycogen ANIMAL STORAGE storage form of glucose Found in animal livers and muscle cells Foods: meats
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Cellulose: plant cell walls stiff Us: good fiber Glucose polymer
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Chitin Onion Cell Walls are of cellulose Exoskeleton of insects, crabs
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Which is a monosaccharide? A disaccharide? A polysaccharide? cellulose chitin glucose glycogen sucrose starch
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Which is a monosaccharide? A disaccharide? A polysaccharide? Cellulose P Chitin P Glucose M Glycogen M Sucrose D Starch P
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