Bio 101 HW Ch 3

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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


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