HESI A2 BIOLOGY EXAM WITH
VERIFIED ANSWERS
\.kingdom - Answer- largest and most inclusive category
\.species - Answer- most restrictive category
\.hierarchic organizational system - Answer- kingdom, phylum, class, order, family, genius,
species
\.steps to an experiment - Answer- 1. observation
2. hypothesis
3. experiment
4. conclusion
\.observation - Answer- data is observed and recorded/ previous data is studied
\.hypothesis - Answer- a statement or explanation of certain events or happenings
\.experiment - Answer- repeatable procedure of gathering data to support or refute the
hypothesis
\.conclusion - Answer- where the data and its significance are fully explained
\.aqueous - Answer- water based
, \.water molecule consists of - Answer- two hydrogen atoms covalently bonded to one oxygen
atom
\.most significant aspect of water is - Answer- the polarity of its bonds that allows for
hydrogen bonding between molecules
\.specific heat - Answer- the amount of heat necessary to raise the temperature of 1 gram of
that molecule 1 degree celsius
\.water has high specific heat due to - Answer- the extent of hydrogen bonding between
water molecules, which allows waters to resist shifts in temperature (ability of oceans or large
bodies of water to stabilize climates)
\.cohesion - Answer- the ability of a molecule to stay bonded or attracted to another
molecule of the same substance (water running together on a newly waxed car)
\.adhesion - Answer- the ability of water to bond to or attract other molecules or substances
(when water is sprayed onto the wall, some of it sticks to the wall)
\.when water freezes it forms - Answer- lattice crystals; causing the molecules to spread
apart, resulting in the phenomenon of ice floating
\.polarity of water allows it to act as an - Answer- versatile solvent (used to dissolve a
number of different solvents)
\.carbohydrates - Answer- longs chains, or polymers of sugar
-used for storage, structure, and energy
VERIFIED ANSWERS
\.kingdom - Answer- largest and most inclusive category
\.species - Answer- most restrictive category
\.hierarchic organizational system - Answer- kingdom, phylum, class, order, family, genius,
species
\.steps to an experiment - Answer- 1. observation
2. hypothesis
3. experiment
4. conclusion
\.observation - Answer- data is observed and recorded/ previous data is studied
\.hypothesis - Answer- a statement or explanation of certain events or happenings
\.experiment - Answer- repeatable procedure of gathering data to support or refute the
hypothesis
\.conclusion - Answer- where the data and its significance are fully explained
\.aqueous - Answer- water based
, \.water molecule consists of - Answer- two hydrogen atoms covalently bonded to one oxygen
atom
\.most significant aspect of water is - Answer- the polarity of its bonds that allows for
hydrogen bonding between molecules
\.specific heat - Answer- the amount of heat necessary to raise the temperature of 1 gram of
that molecule 1 degree celsius
\.water has high specific heat due to - Answer- the extent of hydrogen bonding between
water molecules, which allows waters to resist shifts in temperature (ability of oceans or large
bodies of water to stabilize climates)
\.cohesion - Answer- the ability of a molecule to stay bonded or attracted to another
molecule of the same substance (water running together on a newly waxed car)
\.adhesion - Answer- the ability of water to bond to or attract other molecules or substances
(when water is sprayed onto the wall, some of it sticks to the wall)
\.when water freezes it forms - Answer- lattice crystals; causing the molecules to spread
apart, resulting in the phenomenon of ice floating
\.polarity of water allows it to act as an - Answer- versatile solvent (used to dissolve a
number of different solvents)
\.carbohydrates - Answer- longs chains, or polymers of sugar
-used for storage, structure, and energy
