Bio 101 HW Ch 3
organic chemistry
study of carbon compounds
what is possible explanation for the presence of the harmful enantiomer?
the body must have an enzyme that is able to convert the beneficial thalidomide enantiomer into the harmful anantiomer
variations in the reactive properties of different organic molecules are most closely associated with
the presence or absence of functional groups
a dehydration reaction is the process in which
water molecules are produced as a polymer formed from monomers
which functional group can act as an acid
carboxyl
unstaturated fats
-have double bonds in their fatty acid chains
which statement is true about isomers?
-structural isomers differ in the position of double bonds within the molecules -cis-trans isomers are mirror image isomers ******(TRUE)-enantiomers differ in biological activity
statements about ionization of water
-water ionizes to form hydroxide and hydroninum ions -dissociation of water produces equal numbers of OH- and H+ -dissociation of water is reversible
if molecular mass of a carbon atom is 12, the mass of a hydrogen atom is 1, and the mass of an oxygen atom is 16 daltons, how many molecules does on mole of table sugar contain?
6.02 x 10^23
which functional group out of carboxyl, hydroxyl, or amino is most likely to gain a proton?
Amino
most organic compounds contain which atoms?
C H N O
which chemical group is most likely to be responsible for an organic molecule behaving as a base?
amino
palm coconut oils are more like animal fats than other plant oils. Because they ____ than other plant oils, they may contribute to cardiovascular disease
contain fewer double bonds
how do isomers differ from one another
differ in the arrangement or bonding of atoms
molecules that have the same chemical formula but different 3D shapes
isomers
an atom has atomic number 26 which means
it has 26 protons and 26 electrons
the 4 main categories of large biological molecules present in living systems
proteins, nucleic acids, carbs, and lipids
an atom has 4 electrons in its valence shell, what type(s) of covalent bonds is it capable of forming with oxygen?
single and double bonds
