BIO 1201 GREGG EXAM 2 2026 HUMAN BODY
SYSTEMS WORKBOOK SOLVED QUESTIONS
COMPILATION
◉ Proton charge and location.
Answer: positive, nucleus
◉ neutron charge and location.
Answer: neutral, nucleus
◉ Electron charge and location.
Answer: negative (-) and outside nucleus in electron cloud
◉ valence electrons.
Answer: electrons in the outermost shell
◉ incomplete valence shells.
Answer: atoms can share or transfer electrons with other atoms, or
make chemical bonds
◉ Atoms valence.
,Answer: Bonding capacity = the number of unpaired electrons
required to complete valence shell
◉ Chemically inert.
Answer: Atoms with a full valence shell, do not form bonds
◉ Covalent bond.
Answer: the sharing of a pair of valence electrons by two atoms
◉ Electronegativity.
Answer: A measure of the ability of an atom in a chemical compound
to attract electrons
◉ nonpolar covalent bond.
Answer: Share e- equally
◉ polar covalent bond.
Answer: unequal sharing of electrons
◉ The # of unpaired e- in the valence shell of an atom =.
Answer: Valence or # of covalent bonds it can form
,◉ Properties of water.
Answer: cohesive behavior, ability to moderate temperature,
expansion upon freezing, versatility as a solvent
◉ cohesion of water molecules.
Answer: hydrogen bonds hold water molecules together, helps the
transport of water against gravity in plants
◉ moderation of temperature by water.
Answer: Water absorbs heat from warmer air and releases stored
heat to cooler air
Water can absorb or release a large amount of heat with only a slight
change in its own temperature
◉ Versatility as a Solvent (Water).
Answer: The property of water that allows it to dissolve polar
substancess
◉ Solute.
Answer: what is being dissolved
◉ aqeuous solution.
Answer: a solution in which the solvent is waters
, ◉ Solution.
Answer: A homogeneous mixture of two or more substances
◉ Solvent.
Answer: A liquid substance capable of dissolving other substances
◉ Expansion upon freezing of water.
Answer: Hydrogen bonds make ice less dense than liquid water. The
lattice structure of ice makes it less dense than the freely flowing
molecules of liquid water, enabling it to float on water
◉ Hydration Shell.
Answer: the sphere of water molecules around a dissolved ion
◉ High specific heat of water allows.
Answer: Minimal temperature fluctuations to within limits that
permit life
◉ Heat.
Answer: thermal energy in transfer from one body of matter to
another
SYSTEMS WORKBOOK SOLVED QUESTIONS
COMPILATION
◉ Proton charge and location.
Answer: positive, nucleus
◉ neutron charge and location.
Answer: neutral, nucleus
◉ Electron charge and location.
Answer: negative (-) and outside nucleus in electron cloud
◉ valence electrons.
Answer: electrons in the outermost shell
◉ incomplete valence shells.
Answer: atoms can share or transfer electrons with other atoms, or
make chemical bonds
◉ Atoms valence.
,Answer: Bonding capacity = the number of unpaired electrons
required to complete valence shell
◉ Chemically inert.
Answer: Atoms with a full valence shell, do not form bonds
◉ Covalent bond.
Answer: the sharing of a pair of valence electrons by two atoms
◉ Electronegativity.
Answer: A measure of the ability of an atom in a chemical compound
to attract electrons
◉ nonpolar covalent bond.
Answer: Share e- equally
◉ polar covalent bond.
Answer: unequal sharing of electrons
◉ The # of unpaired e- in the valence shell of an atom =.
Answer: Valence or # of covalent bonds it can form
,◉ Properties of water.
Answer: cohesive behavior, ability to moderate temperature,
expansion upon freezing, versatility as a solvent
◉ cohesion of water molecules.
Answer: hydrogen bonds hold water molecules together, helps the
transport of water against gravity in plants
◉ moderation of temperature by water.
Answer: Water absorbs heat from warmer air and releases stored
heat to cooler air
Water can absorb or release a large amount of heat with only a slight
change in its own temperature
◉ Versatility as a Solvent (Water).
Answer: The property of water that allows it to dissolve polar
substancess
◉ Solute.
Answer: what is being dissolved
◉ aqeuous solution.
Answer: a solution in which the solvent is waters
, ◉ Solution.
Answer: A homogeneous mixture of two or more substances
◉ Solvent.
Answer: A liquid substance capable of dissolving other substances
◉ Expansion upon freezing of water.
Answer: Hydrogen bonds make ice less dense than liquid water. The
lattice structure of ice makes it less dense than the freely flowing
molecules of liquid water, enabling it to float on water
◉ Hydration Shell.
Answer: the sphere of water molecules around a dissolved ion
◉ High specific heat of water allows.
Answer: Minimal temperature fluctuations to within limits that
permit life
◉ Heat.
Answer: thermal energy in transfer from one body of matter to
another
