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APHY 101 WITH VERIFIED
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ANSWERS
Physiology |is |the |study |of |how |a |body |function |works |
T |or |F |- |True
Histology |could |be |defined |as |a |study |of:
a) |cells
b) |tissues
c) |cell |chemistry
d) |the |gross |structures |of |the |body
e) |none |of |the |above |- |B |- |Tissues
"Boundary |Maintenance" |refers |to |the |notion |of |regulating |what |moves |between |inside |and |
outside. |T |or |F |- |T
Which |of |the |following |would |not |be |functional |characteristics |of |life? |
a) |movement
b) |responsiveness |to |external |stimuli
c) |maintenance |of |boundaries
d) |decay
e) |none |of |the |above |- |D- |Decay
Homeostasis |is |keeping |a |free-floating |set |of |values |for |things |like |blood-pressure |and |body |
temperature. |
,T |or |F |- |F
Which |of |the |following |statements |is |true |concerning |feedback |mechanisms?
a) |Positive |feedback |mechanisms |always |result |in |excessive |damage |to |the |host
b) |Negative |feedback |mechanisms |tend |to |increase |the |original |stimulus.
c) |Negative |feedback |mechanisms |work |to |prevent |sudden,
severe |changes |within |the |body
d) |Blood |glucose |levels |are |regulated |by |positive |feedback |mechanisms
e |None |of |the |above |- |C- |Negative |feedback |mechanisms |work |to |prevent |sudden, |severe |
changes |within |the |body
Reproduction |is |not |a |characteristic |of |life |- |F
The |most |important |chemical |property |of |a |chemical |is |"does |it |dissolve |in |water", |since |that |
regulates |how |it |passes |through |a |cell |membrane. |T |or |F |- |T
Phospholipids:
a) |are |exclusively |hydrophilic |(attract |water) |molecules
b) |contain |hydrophilic |tails |and |hydrophobic |head |groups
c) |are |both |hydrophilic |(attract |water) |and |hydrophobic |(repel |water) |in |nature
d) |form |the |lipid |bilayer, |with |hydrophobic |(repels |water) |tails |directed |to |the |outside |- |C |- |are |
both |hydrophilic |(attract |water), |and |hydrophobic |(repel |water) |in |nature
A |tissue |consists |of |groups |of |similar |cells |that |have |a |common |function. |- |T
The |anatomical |position |is |characterized |by |all |of |the |following |EXCEPT:
a) |body |erect
, b) |arms |at |sides
c) |palms |turned |posteriorly
d) |thumbs |pointed |laterally |- |C- |palms |turned |posteriorly
Regardless |of |the |variable |being |regulated, |all |homeostatic |control |mechanisms |have |at |least |
three |interdependent |components. |- |True. |The |three |components |are |Affector |(sensor), |
Integrator |(decision |maker), |and |Effector |(actor)
Which |statement |is |true |concerning |membrane |transport?
a) |tight |junctions |carry |materials |from |cell-to-cell |avoiding |membranes
b) |Diffusion |requires |a |source |of |ATP
c) |Osmosis |is |movement |of |water |molecules |up |a |diffusion |gradient
d) |Osmosis |is |the |movement |of |water |through |a |selectively |permeable |membrane |- |D |- |
Osmosis |is |the |movement |of |water |through |a |selectively |permeable |membrane
Lipids |are |a |poor |source |of |stored |energy. |T |or |F |- |F |- |A |primary |function |of |lipids |is |long-term |
storage |of |energy.
Epithelial |tissues |always |exhibit |"polarity"; |that |is, |they |have |a |free, |apical |surface |and |a |basal |
surface. |T |or |F |- |T
Epithelial |tissues |are |categorized |by:
a) |morphology
b) |matrix |type
c) |layering
d) |cellular |function, |whether |a |producer |or |a |digester
e) |both |a |and |c |- |E |- |morphology |and |layering