bio 101 NAS2 test questions with correct
answers
What |is |the |charge |of |the |nucleus |within |an |atom? |- |CORRECT |ANSWER✔✔-positive
Which |of |the |following |are |some |of |the |six |most |common |elements |in |humans? |- |CORRECT |
ANSWER✔✔-Nitrogen, |Hydrogen, |Oxygen
Where |are |electrons |found |in |an |atom? |- |CORRECT |ANSWER✔✔-In |shells |orbiting |the |nucleus
If |you |change |the |number |of |protons |of |an |atoms, |what |is |the |result? |- |CORRECT |
ANSWER✔✔-a |new |element
An |atom |can |hold |up |to |______ |electrons |in |the |first |shell, |and |up |to |_________ |electrons |in |
its |second |shell |- |CORRECT |ANSWER✔✔-2,8
Atoms |with |an |incomplete |outer |shell |are |said |to |be |______________. |- |CORRECT |
ANSWER✔✔-reactive
bond |between |molecules |- |CORRECT |ANSWER✔✔-intermolecular |bond
bond |within |a |molecule |- |CORRECT |ANSWER✔✔-intramolecular |bond
bond |created |by |the |sharing |of |a |pair |of |electrons |- |CORRECT |ANSWER✔✔-covalent |bonds
bond |between |two |oppositely |charged |atoms |- |CORRECT |ANSWER✔✔-ionic |bond
, bond |between |two |polar |molecules |- |CORRECT |ANSWER✔✔-hydrogen |bond
Which |of |the |following |best |describes |water |in |the |body? |- |CORRECT |ANSWER✔✔-a |solvent
water |is |a |________ |- |CORRECT |ANSWER✔✔-polar |molecule
what |are |some |functions |of |water |- |CORRECT |ANSWER✔✔-solvent, |transport, |lubricate, |
cushion
In |a |solution |of |water |and |glucose, |which |is |the |solute? |- |CORRECT |ANSWER✔✔-glucose
Which |is |the |universal |solvent |in |the |human |body? |- |CORRECT |ANSWER✔✔-water
molecule |that |resists |pH |change |- |CORRECT |ANSWER✔✔-buffer
Proton |acceptor |- |CORRECT |ANSWER✔✔-a |base
a |measure |of |hydrogen |ion |concentration |- |CORRECT |ANSWER✔✔-pH
proton |donor |- |CORRECT |ANSWER✔✔-acid
as |pH |drops |the |concentration |of |hydrogen |ions... |- |CORRECT |ANSWER✔✔-increases
Ions |are |critically |important |for |muscle |physiology, |neurophysiology, |release |of |
neurotransmitters, |and |blood |clotting. |- |CORRECT |ANSWER✔✔-true
answers
What |is |the |charge |of |the |nucleus |within |an |atom? |- |CORRECT |ANSWER✔✔-positive
Which |of |the |following |are |some |of |the |six |most |common |elements |in |humans? |- |CORRECT |
ANSWER✔✔-Nitrogen, |Hydrogen, |Oxygen
Where |are |electrons |found |in |an |atom? |- |CORRECT |ANSWER✔✔-In |shells |orbiting |the |nucleus
If |you |change |the |number |of |protons |of |an |atoms, |what |is |the |result? |- |CORRECT |
ANSWER✔✔-a |new |element
An |atom |can |hold |up |to |______ |electrons |in |the |first |shell, |and |up |to |_________ |electrons |in |
its |second |shell |- |CORRECT |ANSWER✔✔-2,8
Atoms |with |an |incomplete |outer |shell |are |said |to |be |______________. |- |CORRECT |
ANSWER✔✔-reactive
bond |between |molecules |- |CORRECT |ANSWER✔✔-intermolecular |bond
bond |within |a |molecule |- |CORRECT |ANSWER✔✔-intramolecular |bond
bond |created |by |the |sharing |of |a |pair |of |electrons |- |CORRECT |ANSWER✔✔-covalent |bonds
bond |between |two |oppositely |charged |atoms |- |CORRECT |ANSWER✔✔-ionic |bond
, bond |between |two |polar |molecules |- |CORRECT |ANSWER✔✔-hydrogen |bond
Which |of |the |following |best |describes |water |in |the |body? |- |CORRECT |ANSWER✔✔-a |solvent
water |is |a |________ |- |CORRECT |ANSWER✔✔-polar |molecule
what |are |some |functions |of |water |- |CORRECT |ANSWER✔✔-solvent, |transport, |lubricate, |
cushion
In |a |solution |of |water |and |glucose, |which |is |the |solute? |- |CORRECT |ANSWER✔✔-glucose
Which |is |the |universal |solvent |in |the |human |body? |- |CORRECT |ANSWER✔✔-water
molecule |that |resists |pH |change |- |CORRECT |ANSWER✔✔-buffer
Proton |acceptor |- |CORRECT |ANSWER✔✔-a |base
a |measure |of |hydrogen |ion |concentration |- |CORRECT |ANSWER✔✔-pH
proton |donor |- |CORRECT |ANSWER✔✔-acid
as |pH |drops |the |concentration |of |hydrogen |ions... |- |CORRECT |ANSWER✔✔-increases
Ions |are |critically |important |for |muscle |physiology, |neurophysiology, |release |of |
neurotransmitters, |and |blood |clotting. |- |CORRECT |ANSWER✔✔-true
