Unit 6 Vocab 2 Flashcards
hemiacetal
the group formed when an alcohol and aldehyde functional group combine.
anomeric carbon
only carbon bonded directly to two oxygen atoms in a ring structure.
anomers
two ring differing in the position of the -OH on the anomeric carbon.
a anomer
when the -OH on the anomeric carbon is trans to C6.
b anomer
when the -OH on the anomeric carbon is cis to C6.
benedict’s test
identifies the presence of an aldose (reducing sugars) in a solution.
maltose
a(1->4) bone between two glucose units and is known as malt sugar; reducing sugar.
lactose
b(1->4) bond between glucose and galactose and is known as milk sugar; reducing sugar.
sucrose
a,b(1->2) bond between glucose and fructose; know as table sugar; not a reducing sugar.
storage polysaccharide
contain only a-glucose units
amylose
makes up 20% of starch; only a-glucose units in an a(1->4) continuous chain coiled.
amylopectin
makes up 80% of starch; only a-glucose (1->4) units branched every 25 a(1->6)
glycogen
is found in the lover and muscles of animals; only a-glucose units branched every 12.
structural polysaccharides
contain b-glucose units and chitin
cellulose
contains b(1->4) glucose units in a continuous chain (not coiled)
