Which Element? Is highest in electronegativity?. Which Element? Is lowest in electronegativity?
Which element?
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Transcript of Which element?
Which element?
Carbon and Macromolecules
Organic Molecules created and maintained by cells
CARBON the Atom
Versatile Element• 4 electrons = 4 bonds• Covalent bonds• Energy stored in each bond• Single, double and triple bonds
Bonds
Extremes
GRAPHENE SHEETS
DIAMONDS
Compounds: Gas, liquid or solid
FOSSIL FUELS
Carbon Molecule shapes:• Lines fuels, fats• Branching Chains starches• Sheets pencil “lead”• Crystals diamonds• Rings odors• Chairs/boats sugars• Balls• Tubes
Nanotechnology
BuckytubeAtomic wires
Buckyball orBuckminsterfullerene
STOP http://screen.yahoo.com/the-colbert-report/jack-andraka-040000753.html
MACROMOLECULES
What is food?Why do we eat?
Carbohydrates • Energy and structure
Polysaccharides• Saccharides –glucose, galactose, fructose
• C, H, O• C6H1206 1C:2H:10
Proteins• Structure and Work
Polypeptides• Amino acids• C, H, O, N
Lipids• Energy Storage, Insulation,
Hormones, Waterproofing
Lipids• Fatty acids + glycerol• C, H, O (no constant ratio)
Genetic Material• Cell Instructions, Reproduction
& History of Species
Nucleic Acids• Nucleotides• C, H, O, P