hydrocarbons

organic molecules consisting only of carbon and h ydrogen

functional groups

 componenets of organic molecules that are most commonly involved in chemical reactions

 enantiomers     

 molecules that are mirror images of each other. 

 geomeric isomers            

all the same covalent partnerships

 structural isomers

 differ in covalent arrangements of their atoms

 monosaccharides

 molecular formulas that are multiples of ch2O

 glycosidic linkage

a covalent bond formed between two monosaccharides by a dehydration reaction

 glycogen

a polymer of glucose that is like amylopectin but more extensively branched

lipds

grouped together because they share on important trait: they have little or no affinity for water

 ribonucelic acid      

molecules that enable living organisms to reproduce their complex components from one genereation to the next.