chapter 3 Flashcards
aldehyde
hydrogen single bonded to a carbon, carbon double bonded to an oxygen
isomer
compounds with the same formula but different structures
carboxyl
Carbon double bonded to oxygen and single bonded to a hydrogen and oxygen
hydroxyl
OH
ketone (carbonyl)
Carbon double bonded to oxygen
amino acid
nitrogen single bonded to 2 hydrogens
phosphate
phosphorus atom bonded to four oxygen atoms
methyl group
carbon bonded to three hydrogens
macromolecules
huge molecules like proteins
polymer
chains made of smaller molecules
monomers
building blocks of polymers
dehydration reaction
monomers linking together to form polymers, removing a molecule of water. one monomer looses a hydroxyl group and one looses a hydrogen
hydrolysis
cell break bonds between monomers by adding water. a hydroxyl joins one monomer and hydrogen joins the other
enzymes
specialized d macromolecules that pews up chemical reactions in cells
monosaccharides
carbohydrate monomers (single-unit sugars) ex: glucose and fructose
glucose
C6H12O6
Carbon chain, 7 hydrogen, 5 hydroxyl, one carboxyl
ose
sugar
disaccharide
two monosaccharides joined by a dehydration reaction
ex: 2 glucose into one maltose
polysaccharide
polymers of monosaccharides linked together by dehydration reactions
ex: starch, glycogen, and cellulose
starch
a storage polysaccharide in plants, made entirely of glucose monomers
often hydrolyzed by animals and plants for a source of glucose