APHY 101 Final Exam with the
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best quality answers
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What |is |the |difference |between |anatomy |and |physiology? |- |correct |answersAnatomy |is |the |
study |of |the |structure |of |body |parts, |whereas |physiology |is |the |study |of |the |function |of |body |
parts
What |are |the |levels |of |organization? |- |correct |answerssubatomic |particles, |atom, |molecule, |
macromolecule, |organelle, |cell, |tissue, |organ, |organ |system, |organism
What |are |the |requirements |of |life? |- |correct |answersWater, |food, |oxygen, |heat, |pressure
What |are |the |characteristics |of |life? |- |correct |answersMovement |(internal |or |gross); |
Responsiveness |(reaction |to |internal |or |external |change); |Growth |(increase |in |size |without |
change |in |shape); |Reproduction |(new |organisms |or |new |cells); |Respiration |(use |of |oxygen; |
removal |of |CO2); |Digestion |(breakdown |of |food); |Absorption |(movement |of |substances |
through |membranes |and |into |fluids); |Circulation |(movement |within |body |fluids); |Assimilation |
(changing |nutrients |into |chemically |different |forms); |Excretion |(removal |of |metabolic |wastes)
Define |homeostasis |- |correct |answersBody's |maintenance |of |a |stable |environment
What |is |a |homeostatic |mechanism? |- |correct |answersthe |body |maintains |homeostasis |through
|a |number |of |self-regulating |control |systems; |examples |are |regulating |body |temperature |and |
pressure |sensitive |receptors |to |regulate |body |pressure
Define |matter |- |correct |answersAnything |that |takes |up |space |and |has |mass |(weight). |It |is |
composed |of |elements.
,Define |element |- |correct |answersfundamental |substance |composed |of |chemically |identical |
atoms
Define |atoms |- |correct |answerssmallest |particle |of |an |element; |basic |unit |of |matter
What |is |the |structure |of |an |atom? |- |correct |answersAn |atom |consists |of |a |nucleus |containing |
protons |and |neutrons, |with |electrons |in
orbit |around |the |nucleus.
Atomic |nucleus |- |correct |answersthe |nucleus |contains |protons |and |neutrons
Proton |- |correct |answerssubatomic |particle |that |has |a |positive |charge
Neutron |- |correct |answerssubatomic |particle |that |has |no |charge
Electron |- |correct |answerssubatomic |particle |that |has |a |negative |charge
Atomic |number |- |correct |answersnumber |or |protons |in |nucleus
Atomic |mass |- |correct |answersnumber |of |protons |plus |number |of |neutrons
What |are |covalent |bonds? |- |correct |answersCovalent |bonds |are |formed |when |atoms |share |
electrons |to |become |stable |with |filled
outer |shells
What |are |ionic |bonds? |- |correct |answers2 |oppositely |charged |atoms |form |this |bond |when |
electrons |are |transferred |from |one |atom |to |another |atom
,What |are |hydrogen |bonds? |- |correct |answersWeak |attraction |between |positive |end |of |one |
polar |molecule |and |negative |end |of |another |polar |molecule; |formed |between |water |
molecules
Define |ion |- |correct |answersWhen |atoms |gain |or |lose |electrons, |they |become |ions.
Define |synthesis |reaction |- |correct |answersTwo |or |more |atoms |or |molecules |are |joined |
together
Define |decomposition |reaction |- |correct |answersLarger |molecules |are |broken |down |into |
smaller |ones
Define |exchange |reaction |- |correct |answersParts |of |molecules |trade |places
Define |reactant |- |correct |answersThe |starting |materials |of |the |reaction |- |the |atoms, |ions, |or |
molecules
Define |product |- |correct |answersSubstances |formed |at |the |end |of |the |chemical |reaction
Define |catalyst |- |correct |answersinfluence |the |rates |of |chemical |reactions
What |is |an |acid? |- |correct |answersElectrolytes |that |release |hydrogen |ions |in |water
What |is |a |base? |- |correct |answersElectrolytes |that |release |ions |that |combine |with |hydrogen |
ions |in |water
What |is |a |salt? |- |correct |answersAcids |and |bases |that |react |to |form |water |and |electrolytes
, What |is |a |pH |scale? |- |correct |answersrepresents |the |concentration |of |hydrogen |ions |[H+] |in |
solution
Neutral |solution |- |correct |answerspH |7; |
indicates |equal |concentrations |of |H+
and |OH-
Acidic |solution |- |correct |answerspH |less |than
|7; |indicates |a |greater |concentration |of |H+
Basic |solution |- |correct |answerspH |greater |than |7; |indicates |a |greater |concentration |of |OH-
What |is |the |difference |between |an |organic |molecule |and |an |inorganic |molecule? |- |correct |
answersorganic |compounds |have |hydrogen |and |carbon; |inorganic |compounds |do |not
What |is |dehydration |synthesis |and |hydrolysis? |- |correct |answersDehydration |reactions |link |
monomers |together |into |polymers |by |releasing |water, |and |hydrolysis |breaks |polymers |into |
monomers |using |a |water |molecule. |Monomers |are |just |single |unit |molecules |and |polymers |are
|chains |of |monomers.
What |are |carbohydrates? |- |correct |answersCarbohydrates |provide |energy |for |cellular |activities.
|These |molecules |contain |carbon, |hydrogen, |and |oxygen.
What |are |lipids? |- |correct |answersPrimarily |used |to |supply |energy |for |cellular |activity. |Lipids |
are |insoluble |in |water |and |include |fats, |phospholipids, |and |steroids.
What |are |proteins? |- |correct |answersProvide |structure; |energy |sources; |chemical |messengers
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best quality answers
| |
h
What |is |the |difference |between |anatomy |and |physiology? |- |correct |answersAnatomy |is |the |
study |of |the |structure |of |body |parts, |whereas |physiology |is |the |study |of |the |function |of |body |
parts
What |are |the |levels |of |organization? |- |correct |answerssubatomic |particles, |atom, |molecule, |
macromolecule, |organelle, |cell, |tissue, |organ, |organ |system, |organism
What |are |the |requirements |of |life? |- |correct |answersWater, |food, |oxygen, |heat, |pressure
What |are |the |characteristics |of |life? |- |correct |answersMovement |(internal |or |gross); |
Responsiveness |(reaction |to |internal |or |external |change); |Growth |(increase |in |size |without |
change |in |shape); |Reproduction |(new |organisms |or |new |cells); |Respiration |(use |of |oxygen; |
removal |of |CO2); |Digestion |(breakdown |of |food); |Absorption |(movement |of |substances |
through |membranes |and |into |fluids); |Circulation |(movement |within |body |fluids); |Assimilation |
(changing |nutrients |into |chemically |different |forms); |Excretion |(removal |of |metabolic |wastes)
Define |homeostasis |- |correct |answersBody's |maintenance |of |a |stable |environment
What |is |a |homeostatic |mechanism? |- |correct |answersthe |body |maintains |homeostasis |through
|a |number |of |self-regulating |control |systems; |examples |are |regulating |body |temperature |and |
pressure |sensitive |receptors |to |regulate |body |pressure
Define |matter |- |correct |answersAnything |that |takes |up |space |and |has |mass |(weight). |It |is |
composed |of |elements.
,Define |element |- |correct |answersfundamental |substance |composed |of |chemically |identical |
atoms
Define |atoms |- |correct |answerssmallest |particle |of |an |element; |basic |unit |of |matter
What |is |the |structure |of |an |atom? |- |correct |answersAn |atom |consists |of |a |nucleus |containing |
protons |and |neutrons, |with |electrons |in
orbit |around |the |nucleus.
Atomic |nucleus |- |correct |answersthe |nucleus |contains |protons |and |neutrons
Proton |- |correct |answerssubatomic |particle |that |has |a |positive |charge
Neutron |- |correct |answerssubatomic |particle |that |has |no |charge
Electron |- |correct |answerssubatomic |particle |that |has |a |negative |charge
Atomic |number |- |correct |answersnumber |or |protons |in |nucleus
Atomic |mass |- |correct |answersnumber |of |protons |plus |number |of |neutrons
What |are |covalent |bonds? |- |correct |answersCovalent |bonds |are |formed |when |atoms |share |
electrons |to |become |stable |with |filled
outer |shells
What |are |ionic |bonds? |- |correct |answers2 |oppositely |charged |atoms |form |this |bond |when |
electrons |are |transferred |from |one |atom |to |another |atom
,What |are |hydrogen |bonds? |- |correct |answersWeak |attraction |between |positive |end |of |one |
polar |molecule |and |negative |end |of |another |polar |molecule; |formed |between |water |
molecules
Define |ion |- |correct |answersWhen |atoms |gain |or |lose |electrons, |they |become |ions.
Define |synthesis |reaction |- |correct |answersTwo |or |more |atoms |or |molecules |are |joined |
together
Define |decomposition |reaction |- |correct |answersLarger |molecules |are |broken |down |into |
smaller |ones
Define |exchange |reaction |- |correct |answersParts |of |molecules |trade |places
Define |reactant |- |correct |answersThe |starting |materials |of |the |reaction |- |the |atoms, |ions, |or |
molecules
Define |product |- |correct |answersSubstances |formed |at |the |end |of |the |chemical |reaction
Define |catalyst |- |correct |answersinfluence |the |rates |of |chemical |reactions
What |is |an |acid? |- |correct |answersElectrolytes |that |release |hydrogen |ions |in |water
What |is |a |base? |- |correct |answersElectrolytes |that |release |ions |that |combine |with |hydrogen |
ions |in |water
What |is |a |salt? |- |correct |answersAcids |and |bases |that |react |to |form |water |and |electrolytes
, What |is |a |pH |scale? |- |correct |answersrepresents |the |concentration |of |hydrogen |ions |[H+] |in |
solution
Neutral |solution |- |correct |answerspH |7; |
indicates |equal |concentrations |of |H+
and |OH-
Acidic |solution |- |correct |answerspH |less |than
|7; |indicates |a |greater |concentration |of |H+
Basic |solution |- |correct |answerspH |greater |than |7; |indicates |a |greater |concentration |of |OH-
What |is |the |difference |between |an |organic |molecule |and |an |inorganic |molecule? |- |correct |
answersorganic |compounds |have |hydrogen |and |carbon; |inorganic |compounds |do |not
What |is |dehydration |synthesis |and |hydrolysis? |- |correct |answersDehydration |reactions |link |
monomers |together |into |polymers |by |releasing |water, |and |hydrolysis |breaks |polymers |into |
monomers |using |a |water |molecule. |Monomers |are |just |single |unit |molecules |and |polymers |are
|chains |of |monomers.
What |are |carbohydrates? |- |correct |answersCarbohydrates |provide |energy |for |cellular |activities.
|These |molecules |contain |carbon, |hydrogen, |and |oxygen.
What |are |lipids? |- |correct |answersPrimarily |used |to |supply |energy |for |cellular |activity. |Lipids |
are |insoluble |in |water |and |include |fats, |phospholipids, |and |steroids.
What |are |proteins? |- |correct |answersProvide |structure; |energy |sources; |chemical |messengers
