Chemistry in Biology Flashcards
carbon
4 electrons, 4 covalent bonds, hydrophobic (equal, non-polar) or hydrophilic (unequal, polar), attaches to itself forming chains
polymers
made up of monomers
monomers
single unit
carbohydrate monomer
saccharide
monosaccharide
one unit of sugar
disaccharide
2 units
polysaccharide
3 or more units
starch
simplest polysaccharide; used for food storage in plants
glycogen
energy storage in animals
cellulose
plant cell wall structure
chitin
exoskeleton; fungi cell wall
Lipids
hydrophobic; fatty acids and glycerol monomers
fats and oils
single glycerol + 3 fatty acids
saturated fatty acid
no double bond, solid
unsaturated fatty acid
double bond, liquid
cis-double bond
bended chain
trans-double bond
straight chain
phospholipids
glycerol + 2 fatty acids + phosphate group, hydrophilic head, hydrophobic tail,
wall formation
heads on outside, tails on inside
steroids
mostly carbon and hydrogen
hormones
estrogen, testosterone
Protein monomer and polymer
monomer- amino acids; polymer- polypeptides
levels
primary, secondary, tertiary, quaternary
primary level
arrangement of amino acids in a chain