BIOL 224 Exam 1
Isotopes - Answer-the same element with varying amounts of neurons
Taxonomic Units (in order) - Answer-Kingdom, Phylum, Class, Order, Family, Genus, Species
Stages of the Scientific Method - Answer-observe, ask questions, form hypothesis, make a prediction,
test hypothesis
Covalent Bond - Answer-shared electrons, strongest type of bond, nonmetal/nonmetal
Ionic Bond - Answer-giving/receiving electrons forming ions, metal/nonmetal, relatively weak in
comparison to covalent bonds, always polar molecules due to large differences in electronegativity
Non-polar Covalent Bond - Answer-the electrons are all shared equally because of similar
electronegativities
van der Waals Interactions - Answer-in non-polar covalent bonds, electrons can be temporarily
unequally distributed, but this is so temporary that it is insignificant
Polar Molecules - Answer-are hydrophylic, meaning soluble in water, because their charges are attracted
to the water molecules
Nonpolar Molecules - Answer-are hydrophobic, not soluble in water, because they are not attracted to
the water molecules
Avagadro's Number - Answer-6.023*10^23
Isotopes - Answer-the same element with varying amounts of neurons
Taxonomic Units (in order) - Answer-Kingdom, Phylum, Class, Order, Family, Genus, Species
Stages of the Scientific Method - Answer-observe, ask questions, form hypothesis, make a prediction,
test hypothesis
Covalent Bond - Answer-shared electrons, strongest type of bond, nonmetal/nonmetal
Ionic Bond - Answer-giving/receiving electrons forming ions, metal/nonmetal, relatively weak in
comparison to covalent bonds, always polar molecules due to large differences in electronegativity
Non-polar Covalent Bond - Answer-the electrons are all shared equally because of similar
electronegativities
van der Waals Interactions - Answer-in non-polar covalent bonds, electrons can be temporarily
unequally distributed, but this is so temporary that it is insignificant
Polar Molecules - Answer-are hydrophylic, meaning soluble in water, because their charges are attracted
to the water molecules
Nonpolar Molecules - Answer-are hydrophobic, not soluble in water, because they are not attracted to
the water molecules
Avagadro's Number - Answer-6.023*10^23
