MMSC 270 Exam 1 with grade
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A+VERIFIED ANSWERS |
how |long |are |most |bacterial |cells |- |correct |answers1-5 |micrometers |(um)
what |are |the |largest |microorganisms |- |correct |answersfluke |and |tapeworm
how |can |you |see |very |small |microorganisms |- |correct |answersneed |to |use |electron |
microscope, |unable |to |be |seen |by |light |microscope
what |is |the |smallest |an |electron |microscope |can |see |- |correct |answers200nm
what |is |the |smallest |a |light |microscope |can |see |- |correct |answers2mm
1km= |_m |- |correct |answers1000
list |all |the |folds |of |meters |in |order |from |largest |to |smallest |- |correct |answersm, |mm, |um, |nm
the |length |of |an |organisms |measuring |80 |nanometers |also |can |be |expressed |as |_ |micrometers
|- |correct |answers0.080 |micrometers
definition |of |refraction |- |correct |answers- |bending |of |light |as |it |passes |from |one |medium |to |
another
- |concentration |process |to |collect |the |light |and |focus |on |the |point |of |the |microscope
long |wavelengths |are |refracted |___ |and |short |wavelengths |are |refracted |___ |- |correct |
answerslong |wavelengths |are |refracted |less |and |short |wavelengths |are |refracted |more
,definition |of |focal |point |- |correct |answersa |point |where |parallel |rays |of |light |focus
what |part |of |the |light |microscope |is |used |for |generating |focal |point |- |correct |
answerscondenser
what |lenses |does |the |compound |microscope |have |- |correct |answersocular |and |objective |
lenses
total |magnification |= |- |correct |answersmagnification |power |of |the |ocular |lens |multiply |by |the |
objective |lens
the |___ |the |total |magnification, |the |better |the |magnification |- |correct |answersthe |bigger |the |
total |magnification, |the |better |the |magnification
objective |lens |can |range |from... |- |correct |answers4x |to |100x
what |magnification |is |the |ocular |lens |- |correct |answers10x
an |ocular |lens |with |a |magnification |of |10x |and |an |objective |lens |of |40x |has |a |total |
magnification |of... |- |correct |answers400x
what |is |resolution |- |correct |answersability |to |reveal |fine |detail |or |two |points |distinctly
how |is |resolution |reported |as |- |correct |answersby |the |smallest |distance |between |two |closely-
spaced |points |that |can |be |viewed |clearly
the |smaller |the |number |of |resolution... |- |correct |answersthe |better |quality |of |the |microscope
,define |focal |length |- |correct |answersdistance |between |center |of |lens |and |focal |point
what |are |the |four |types |of |light |microscopes |used |in |clinical |microbiology |labs |- |correct |
answers- |bright-field |microscope
- |phase-contrast |microscope
- |dark |field |microscope
- |fluorescence |microscope
what |does |the |objective |lens |do |in |a |bright-field |microscope |- |correct |answersamplifies |and |
flips |the |object
what |does |the |ocular |lens |to |in |a |bright-field |microscope |- |correct |answersamplifies |the |object
|but |doesn't |flip |it
how |does |a |bright-field |microscope |work |- |correct |answersvisible |light |passes |through |two |
lenses |and |through |the |specimen
what |objective |lenses |do |bright-field |microscopes |have |at |the |least |- |correct |answers- |low |
power |(10x)
- |high |power |(40x)
- |oil |immersion |(100x)
does |a |bright-field |microscope |have |good |or |bad |resolving |power? |Does |it |have |a |low |or |high |
number |for |resolution? |- |correct |answersgood |resolving |power |-> |low |number
what |does |the |condenser |of |a |bright-field |microscope |do |- |correct |answersminimizes |the |
refraction
, if |objective |lens |is |on |100x, |what |will |happen |- |correct |answersthe |light |will |refract |
dramatically |and |the |image |will |be |hard |to |see
what |must |you |do |with |a |bright-field |microscope |when |the |objective |lens |is |on |100x |- |correct |
answersput |one |drop |of |oil |in |between |glass |slide |and |objective |lens |to |decrease |refraction
what |magnification |of |bright-field |microscope |do |you |use |oil |- |correct |answers100x |ONLY
which |part(s) |of |bright-field |microscope |provide |magnification? |- |correct |answersocular |lens |
and |objective |lens
which |part(s) |of |bright-field |microscope |reverts |the |image |of |the |specimen |- |correct |
answersobjective |lens
what |microscope |uses |a |simple |stain |- |correct |answersbright-field |micoscope
describe |a |simple |stain |- |correct |answersflood |a |prepared |specimen |with |basic |(cationic) |dye |
such |as |Methylene |Blue |which |binds |to |negatively |charged |cells
what |dye |is |often |used |in |a |simple |stain |technique |- |correct |answersmethylene |blue
what |does |the |dye |of |a |basic |stain |bind |to |- |correct |answersnegatively |charged |cells
what |microscope |uses |a |negative |stain |- |correct |answersbright-field |microscope
describe |a |negative |stain |technique |- |correct |answersuses |acidic |(anionic) |dye, |such |as |india |
ink, |which |is |repelled |by |cells |walls, |leaving |clear |cells |on |a |dark |background
| | | | | |
A+VERIFIED ANSWERS |
how |long |are |most |bacterial |cells |- |correct |answers1-5 |micrometers |(um)
what |are |the |largest |microorganisms |- |correct |answersfluke |and |tapeworm
how |can |you |see |very |small |microorganisms |- |correct |answersneed |to |use |electron |
microscope, |unable |to |be |seen |by |light |microscope
what |is |the |smallest |an |electron |microscope |can |see |- |correct |answers200nm
what |is |the |smallest |a |light |microscope |can |see |- |correct |answers2mm
1km= |_m |- |correct |answers1000
list |all |the |folds |of |meters |in |order |from |largest |to |smallest |- |correct |answersm, |mm, |um, |nm
the |length |of |an |organisms |measuring |80 |nanometers |also |can |be |expressed |as |_ |micrometers
|- |correct |answers0.080 |micrometers
definition |of |refraction |- |correct |answers- |bending |of |light |as |it |passes |from |one |medium |to |
another
- |concentration |process |to |collect |the |light |and |focus |on |the |point |of |the |microscope
long |wavelengths |are |refracted |___ |and |short |wavelengths |are |refracted |___ |- |correct |
answerslong |wavelengths |are |refracted |less |and |short |wavelengths |are |refracted |more
,definition |of |focal |point |- |correct |answersa |point |where |parallel |rays |of |light |focus
what |part |of |the |light |microscope |is |used |for |generating |focal |point |- |correct |
answerscondenser
what |lenses |does |the |compound |microscope |have |- |correct |answersocular |and |objective |
lenses
total |magnification |= |- |correct |answersmagnification |power |of |the |ocular |lens |multiply |by |the |
objective |lens
the |___ |the |total |magnification, |the |better |the |magnification |- |correct |answersthe |bigger |the |
total |magnification, |the |better |the |magnification
objective |lens |can |range |from... |- |correct |answers4x |to |100x
what |magnification |is |the |ocular |lens |- |correct |answers10x
an |ocular |lens |with |a |magnification |of |10x |and |an |objective |lens |of |40x |has |a |total |
magnification |of... |- |correct |answers400x
what |is |resolution |- |correct |answersability |to |reveal |fine |detail |or |two |points |distinctly
how |is |resolution |reported |as |- |correct |answersby |the |smallest |distance |between |two |closely-
spaced |points |that |can |be |viewed |clearly
the |smaller |the |number |of |resolution... |- |correct |answersthe |better |quality |of |the |microscope
,define |focal |length |- |correct |answersdistance |between |center |of |lens |and |focal |point
what |are |the |four |types |of |light |microscopes |used |in |clinical |microbiology |labs |- |correct |
answers- |bright-field |microscope
- |phase-contrast |microscope
- |dark |field |microscope
- |fluorescence |microscope
what |does |the |objective |lens |do |in |a |bright-field |microscope |- |correct |answersamplifies |and |
flips |the |object
what |does |the |ocular |lens |to |in |a |bright-field |microscope |- |correct |answersamplifies |the |object
|but |doesn't |flip |it
how |does |a |bright-field |microscope |work |- |correct |answersvisible |light |passes |through |two |
lenses |and |through |the |specimen
what |objective |lenses |do |bright-field |microscopes |have |at |the |least |- |correct |answers- |low |
power |(10x)
- |high |power |(40x)
- |oil |immersion |(100x)
does |a |bright-field |microscope |have |good |or |bad |resolving |power? |Does |it |have |a |low |or |high |
number |for |resolution? |- |correct |answersgood |resolving |power |-> |low |number
what |does |the |condenser |of |a |bright-field |microscope |do |- |correct |answersminimizes |the |
refraction
, if |objective |lens |is |on |100x, |what |will |happen |- |correct |answersthe |light |will |refract |
dramatically |and |the |image |will |be |hard |to |see
what |must |you |do |with |a |bright-field |microscope |when |the |objective |lens |is |on |100x |- |correct |
answersput |one |drop |of |oil |in |between |glass |slide |and |objective |lens |to |decrease |refraction
what |magnification |of |bright-field |microscope |do |you |use |oil |- |correct |answers100x |ONLY
which |part(s) |of |bright-field |microscope |provide |magnification? |- |correct |answersocular |lens |
and |objective |lens
which |part(s) |of |bright-field |microscope |reverts |the |image |of |the |specimen |- |correct |
answersobjective |lens
what |microscope |uses |a |simple |stain |- |correct |answersbright-field |micoscope
describe |a |simple |stain |- |correct |answersflood |a |prepared |specimen |with |basic |(cationic) |dye |
such |as |Methylene |Blue |which |binds |to |negatively |charged |cells
what |dye |is |often |used |in |a |simple |stain |technique |- |correct |answersmethylene |blue
what |does |the |dye |of |a |basic |stain |bind |to |- |correct |answersnegatively |charged |cells
what |microscope |uses |a |negative |stain |- |correct |answersbright-field |microscope
describe |a |negative |stain |technique |- |correct |answersuses |acidic |(anionic) |dye, |such |as |india |
ink, |which |is |repelled |by |cells |walls, |leaving |clear |cells |on |a |dark |background
