BIO 160 Chapter 3 Flashcards
organic compounds
are carbon based molecules
hydrocarbon
are the simplest organic compounds, contains only carbon and hydrogen
Methane
simplest hydrocarbon, Carbon, 4 Hydrogens
larger hydrocarbons
contain fat
macromolecules
Carbohydrates, Proteins, and Nucleic Acid
polymers
many monomers
monomers
smaller molecules
functional groups
groups of atoms that usually participate in chemical reactions
Hydroxyl groups
-OH
Carboxyl groups
-COOH
How are macromolecules created?
chemical reactions
dehydration reactions
join monomers to create polymers, take out water
hydrolysis reactions
break polymers into monomers, adds a molecule of water
Carbohydrates
sugars and polymers of sugars
Carbohydrates in Animals
source of dietary energy and raw material for producing other compounds
Carbohydrates in Plants
make up plant body and cell wall
monosaccarides
carbohydrate monomer subunit, simple sugar that cannot be broken down by hydrolysis
C6H12O6
glucose, fructose
isomers
same molecular formula but different structures
disaccharide
double sugar, by dehydration reaction
Lactose (glucose+galactose=milk)
Sucrose (glucose+fructose=table sugar)
polysaccharides
complex carbohydrates, made of long chains of sugar units Ex. starch , glycogen, cellulose
lipids
hydrophobic molecules
hydrophobic
water fearing
hydrophillic
water loving
triglycerides
glycerol and 3 fatty acids
triglyceride functions
energy storage, insulation, cushioning
unsaturated
have fewer than the maximum hydrogens, fish oil and plant oils, liquid at room temp