carbon and macromolecules 10/31-11/1

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32 Terms

1

tetravalence

ability to bond with 4 atoms

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2

organic chem

branch of chem that specializes in the study of carbon compounds

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3

hydrocarbons

organic molecules consisting of only carbon and hydrogen

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4

isomers

some molecular formula but different arrangement of atoms

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5

types of isomers

structural, geometric, stereoisomers

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6

structural isomer

different carbon backbone arrangement

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7

geometric isomer

different arrangement of functional groups

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8

stereoisomers

mirror images of each other

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9

two factors that determine the properties of an organic molecule

  • shape of carbon backbone

  • functional groups

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10

functional groups

the reactive part of a molecule

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11

macromolecule

the big molecules that make up living organisms and our diet

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12

carb monomer

a single unit or building block

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13

carb polymer

large molecule consisting of many identical/similar building blocks (monomers)

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14

dehydration synthesis

  • how monomers are connected

  • dehydration is how bonds are made

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15

hydrolysis

  • how polymers are broken down

  • adding water breaks the bonds holding monomers together

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16

carbohydrates

monomer: monosaccharides (CH2O)

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17

simple sugar

doesn’t need to be broken down (monomer)

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18

examples of monosaccharides

glucose, dextrose, fructose, ribose

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19

disaccharides

  • two monosaccharides bonded together

  • also considered a simple sugar

  • ex. fructose + glucose = sucrose

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20

polysaccharides

  • several monosaccharides

  • used for storage and structural purposes

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21

polysaccharide food storage

  • starch (plants) and glycogen (animals)

  • alpha glycosidic bonds (point down)

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22

structural polysaccharides

  • cellulose

    • major structural molecule in plants

    • beta glycosidic bonds (point up)

  • chitin

    • modified polysaccharide found in exoskeleton of insects and the cell wall of fungi

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23

lipids (fats)

  • have a lot of energy because of their large amount of bonds

  • supply the body with energy

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24

lipid polymer

triglyceride

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25

lipid monomer

glycerol + 3 fatty acids

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26

saturated fats

  • all single bonds between carbons

  • form straight lines and are really dense

  • solid at room temperature

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27

unsaturated fat

  • have double bonds in the carbon backbone

  • less dense and have a bend

  • liquid at room temperature

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28

trans fats

  • have functional groups on opposite sides

  • allows the atoms to pact together closer

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29

reason unsaturated and trans fats are so bad for you

they are solid and can form plaque buildups in your blood stream

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30

hydrogenation

blasting an unsaturated fats with hydrogen, turning it into a saturated fat

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31

phospholipids

  • closely related to a triglyceride

  • 3rd fatty acid is replaced with a phosphate group (PO4)

  • amphipathic (half polar half nonpolar)

  • make up cell membrane

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32

cholesterol and steroid hormones

  • 4 connected rings

  • all nonpolar

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