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BASIC CHEMISTRY. ATOMIC STRUCTURE ATOM, NUCLEUS, PROTON, NEUTRON, ELECTRON ATOMIC NUMBER, ATOMIC WEIGHT CHEMCIAL BONDS COVALENT, IONIC, HYDROGEN FUNCTIONAL.

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Presentation on theme: "BASIC CHEMISTRY. ATOMIC STRUCTURE ATOM, NUCLEUS, PROTON, NEUTRON, ELECTRON ATOMIC NUMBER, ATOMIC WEIGHT CHEMCIAL BONDS COVALENT, IONIC, HYDROGEN FUNCTIONAL."— Presentation transcript:

1 BASIC CHEMISTRY

2 ATOMIC STRUCTURE ATOM, NUCLEUS, PROTON, NEUTRON, ELECTRON ATOMIC NUMBER, ATOMIC WEIGHT CHEMCIAL BONDS COVALENT, IONIC, HYDROGEN FUNCTIONAL GROUPS HYDROXYL, CARBONYL, CARBOXYL, PHOSPHORYL, SULFHYDRYL, AMINO CLASSES OF COMPOUND ALCOHOL, ALDEHYDE, KETONE, ACIDS (CARBOXYL & PHOSPHORYL), AMINE, THIOETHER, DISULFIDE, ANHYDRIDE, GLYCOSIDE, AMIDE PEPTIDES ARE AMIDES FORMED FROM AMINO ACIDS

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4 NITROGEN OXYGEN ATOMIC STRUCTURE

5 CHEMICAL BONDS COVALENT – SHARING ELECTRON PAIRS SINGLE, DOUBLE AND TRIPLE COVALENT BONDS E.G., CARBON-CARBON BOND IONIC BONDS – ATTRACTION BETWEEN POSITIVELY AND NEGATIVELY CHARGED IONS E.G., SODIUM CHLORIDE HYDROGEN BONDS – ATTRACTION BETWEEN PARTIAL POSITIVELY AND NEGATIVELY CHARGED REGIONS OF MOLECULES E.G., WATER

6 CHEMICAL BONDS - COVALENT

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9 HYDROGEN BONDS

10 FUNCTIONAL GROUPS –  PORTION OF A LARGER MOLECULE WHICH CONSISTS OF A SMALL NUMBER OF ATOMS THAT HAVE A CHARACTERISIC CHEMICAL BEHAVIOR.  ALWAYS REACT THE SAME WAY  GIVE THE COMPOUND ITS CHEMICAL REACTIVITY

11 CLASSES OF COMPOUNDS – BASED ON PRESENCE OF FUNCTIONAL GROUP GROUPCLASS HYDROXYLALCOHOL CARBONYL (END OF CHAIN)ALDEHYDE CARBONYL (INTERNAL)KETONE CARBOXYLACID – CARBOXYLIC PHOSPHORYLACID - PHOSPHORIC AMINOAMINE SULFHYDRYLTHIOL AMINO AND CARBOXYLAMINO ACIDS

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15 CLASSES OF COMPOUND – BASED ON THE GROUPS WHICH REACTED TO FORM THE COMPOUND REACTING GROUPSCOMPOUND HYDROXYLS (ALCOHOLS)ETHER SULFHYDRYLS (THIOLS)THIO-ETHER CARBOXYLS, PHOSPHORYLSANHYDRIDES (ACIDS) CARBON ONE OF SUGAR & HYDROXYL OF ANOTHER SUGARO-GLYCOSIDE CARBON ONE OF SUGAR & O-GLYCOSIDIC BOND NITROGEN OF NUCLEIC ACID BASEN-GLYCOSIDE N-GLYCOSIDIC BOND CARBOXYLIC & AMINOAMIDE (PEPTIDE BOND)

16 CLASSES OF COMPOUND- BASED ON REACTION WHICH FORMED THEM

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18 SAME CHEMICAL COMPOSITION SAME FUNCTIONAL GROUPS HAVE DIFFERENT CONFIGURATIONS ENANTIOMERS - ONE KIND OF STERIOISOMER NON-IDENTICAL MIRROR IMAGES E.G. D-GLYCERALDEHYDE L-GLYCERALDEHYDE D - DEXTROROTATORY (ROTATES POLARIZED LIGHT TO RIGHT) L - LEVOROTATORY (ROTATES POLARIZED LIGHT TO LEFT) 3 STEREOISOMERS

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22 WHAT?NATURE OF CHEMICAL BONDS FUNCTIONAL GROUPS/CLASSES OF COMPOUNDS AND HOW THEY REACT NATURE OF ENANTIOMERS WHY?ALL CREATURES MUST HAVE LOW MOLECULAR WEIGHT PRECURSORS (AMINO ACIDS, MONONUCLEOTIDES, FATTY ACIDS, MONOSACCHARIDES) WHICH WILL BE USED TO SYNTHESIZE HIGH MOLECULAR WEIGH MACROMOLECULES (PROTEINS, DNA, RNA, LIPIDS, POLYSACCHARIDES) WHICH FORM CELLS. WHAT DISTINGUISHES THE PRECURSORS FROM EACH OTHER? DIFFERENT FUNCTIONAL GROUPS AND SHAPES


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