ap bio exam review units 1-6 questions and answers

ap bio exam review units 1-6 questions
and answers13

biotechnology - ANSWERS -manipulating organisms or their components to make products



restriction enzymes - ANSWERS -cut DNA at restriction sites



PCR - ANSWERS -amplifies a particular piece of DNA



gel electrophoresis - ANSWERS -separates macromolecules



restriction fragment length polymorphisms (RFLPs) - ANSWERS -result from small differences in
DNA sequences



most common elements - ANSWERS -C, H, O, N



protons - ANSWERS -positively charged particles



electrons - ANSWERS -negatively charged particles



neutrons - ANSWERS -particles with no charge



isotopes - ANSWERS -forms of an element with differing numbers of neutrons



covalent bonds - ANSWERS -when electrons are shared by two atoms

, nonpolar covalent bonds - ANSWERS -shared equally



polar covalent bonds - ANSWERS -shared unequally



ionic bonds - ANSWERS -attraction between oppositely charged ions



hydrogen bonds - ANSWERS -weak bonds between positively charged H and negatively charged
O or N



are water molecules polar or nonpolar? - ANSWERS -polar



cohesion - ANSWERS -linking of like molecules



adhesion - ANSWERS -clinging of one substance to another



transpiration - ANSWERS -water moving up xylem tubes



specific heat - ANSWERS -amount of heat required to change the temperature of a substance by
1 degree celsius



solvent - ANSWERS -substance something is dissolved in



hydrophilic - ANSWERS -water soluble and polar



hydrophobic - ANSWERS -dissolve in water and nonpolar