Card Set Information
Midterm 1 lectures 3-8
biological molecule made of a carbon, hydrogen, and oxygen, ratio 1:2:1
the four classes of biological molecules
carbohydrates, lipids, protein, and nucleic acid
composed of carbon and at least one hydrogen atom
affect chemical behavior of organic compound
a cluster of atoms bonded to carbon, gives rise to specific properties.
gives identity, estrogen hormone to women, testerone to men
an OH group from one molecule combines with H atom from another. Water forms as the two molecules bond covalently.
A molecule splits, then an OH grou and H atom from a water molecule become attached to sites exposed by the reaction.
molecule reffers to a building block or a brick
two identical molecules, created a chain like
molecules that catalyze reaction, takes the polymer and breaks them
What is Carbohydrate?
plentiful and varied
most abundant biological molecule
used to build cell parts as energy sources
: extracellular matrix (green)
simplest carbohydrate = Monosaccharide= one monomr of sugar
= O and H jointed to a carbon backbone
= tasted sweet and dissolve
= one of the energy sources
= precursor of many compounds including vitamin C
short chains of sugar units
more complicated sugar form
: a few
Energy source and parts of protein
two sugar units
: lactose=sugar from milk, sucrose= table sugar (plentiful sugar in nature, consists of glucose and fructose)
sugar chains that stor energy, that energy is released to cells when the digestive system breaks these sugars down.
straight or branched chain of sugar monomers (glucose)
complex carbohydrate, jointed by dehydration synthesis
make up most of carbohydrate human eats, glycogen, startch, and cellulose, which consists only of glucose
Polysaccharide made caborhydrate in our eats
storage form of glucose in plant( wheat, potatoes, rice, corn )
indigestible fiber of plants (aids in human digestion)
storage of glucose in animals (in liver and muscle)