Biology 1450- Lab #1 Exam Questions With
Correct Answers
Give |a |one-sentence |definition |of |science |- |CORRECT |ANSWER✔✔-Science |is |knowing |& |
understanding |our |natural |world
What |is |inquiry? |- |CORRECT |ANSWER✔✔-Inquiry |is |a |search |for |information |and |explanations |
of |natural |phenomena.
What |is |the |role |of |data |for |scientific |inquiry? |- |CORRECT |ANSWER✔✔-Scientific |inquiry |is |
based |off |data. |Data |is |bits |of |information |that |scientific |inquiry |is |based |off.
What |is |a |hypothesis? |- |CORRECT |ANSWER✔✔-A |hypothesis |is |an |explanation, |based |off |
observations |and |assumptions |that |leads |to |a |testable |prediction.
What |is |a |scientific |theory? |- |CORRECT |ANSWER✔✔-A |scientific |theory |is |an |explanation |of |an
|aspect |of |the |natural |world |that |can |be |repeatedly |tested |and |verified |in |accordance |with |
scientific |method.
What |is |the |difference |between |qualitative |data |and |quantitative |data? |- |CORRECT |
ANSWER✔✔-Qualitative |data |is |like |descriptions |rather |than |numerical |data. |Ex. |Jane |Goodall |
recording |behaviors |of |chimps. |Quantitative |data |is |often |times |numerical. |Ex. |The |amount |of |
times |the |behavior |happened.
What |is |a |unique |characteristic |of |primary |literature? |- |CORRECT |ANSWER✔✔-A |unique |
characteristic |of |primary |literature |is |that |it |is |reporting |research |from |the |first |time.
, What |is |the |mall |of |6.022 |X |10^23 |particles |of |a |molecule |if |each |molecule |is |58.44 |daltons? |- |
CORRECT |ANSWER✔✔-(6.022 |X |10^23)(58.44)= |3.519 |X |10^25
What |does |concentration |measure? |- |CORRECT |ANSWER✔✔-Concentration |is |a |measure |of |
the |amount |of |solute |in |a |solvent.
What |is |the |difference |between |a |basic |unit |of |measurement |and |a |derived |measurement? |- |
CORRECT |ANSWER✔✔-A |basic |unit |is |a |single |& |direct |unit. |A |derived |unit |is |determined |by |
equations |using |basic |units.
How |many |microliters |are |there |in |one |milliliter? |- |CORRECT |ANSWER✔✔-There |are |1000 |
microliters |in |1 |milliliter.
What |does |a |micropipette |measure? |- |CORRECT |ANSWER✔✔-It |measures |precise |volumes |of |
liquids.
Name |3 |don't |of |pipetting |- |CORRECT |ANSWER✔✔-Do |not |pipette |without |a |tip, |do |no |blow |
bubbles |into |your |liquids, |and |do |not |release |the |plunger |too |quickly.
What |does |a |spectrophotometer |measure? |- |CORRECT |ANSWER✔✔-A |spectrophotometer |
measures |the |amount |of |light |absorbed |or |transmitted |through |a |liquid |sample.
What |is |the |purpose |of |"blanking" |a |spectrophotometer |- |CORRECT |ANSWER✔✔-The |purpose |
of |blanking |the |spectrophotometer |is |to |let |the |machine |know |that |the |light |coming |through |
is |a |reference |point. |You |are |telling |it |to |ignore |the |solvent |and |the |cuvette.
What |is |a |"cuvette"? |- |CORRECT |ANSWER✔✔-A |cuvette |is |a |glass |or |plastic |sample |container |
for |holding |liquids.
Correct Answers
Give |a |one-sentence |definition |of |science |- |CORRECT |ANSWER✔✔-Science |is |knowing |& |
understanding |our |natural |world
What |is |inquiry? |- |CORRECT |ANSWER✔✔-Inquiry |is |a |search |for |information |and |explanations |
of |natural |phenomena.
What |is |the |role |of |data |for |scientific |inquiry? |- |CORRECT |ANSWER✔✔-Scientific |inquiry |is |
based |off |data. |Data |is |bits |of |information |that |scientific |inquiry |is |based |off.
What |is |a |hypothesis? |- |CORRECT |ANSWER✔✔-A |hypothesis |is |an |explanation, |based |off |
observations |and |assumptions |that |leads |to |a |testable |prediction.
What |is |a |scientific |theory? |- |CORRECT |ANSWER✔✔-A |scientific |theory |is |an |explanation |of |an
|aspect |of |the |natural |world |that |can |be |repeatedly |tested |and |verified |in |accordance |with |
scientific |method.
What |is |the |difference |between |qualitative |data |and |quantitative |data? |- |CORRECT |
ANSWER✔✔-Qualitative |data |is |like |descriptions |rather |than |numerical |data. |Ex. |Jane |Goodall |
recording |behaviors |of |chimps. |Quantitative |data |is |often |times |numerical. |Ex. |The |amount |of |
times |the |behavior |happened.
What |is |a |unique |characteristic |of |primary |literature? |- |CORRECT |ANSWER✔✔-A |unique |
characteristic |of |primary |literature |is |that |it |is |reporting |research |from |the |first |time.
, What |is |the |mall |of |6.022 |X |10^23 |particles |of |a |molecule |if |each |molecule |is |58.44 |daltons? |- |
CORRECT |ANSWER✔✔-(6.022 |X |10^23)(58.44)= |3.519 |X |10^25
What |does |concentration |measure? |- |CORRECT |ANSWER✔✔-Concentration |is |a |measure |of |
the |amount |of |solute |in |a |solvent.
What |is |the |difference |between |a |basic |unit |of |measurement |and |a |derived |measurement? |- |
CORRECT |ANSWER✔✔-A |basic |unit |is |a |single |& |direct |unit. |A |derived |unit |is |determined |by |
equations |using |basic |units.
How |many |microliters |are |there |in |one |milliliter? |- |CORRECT |ANSWER✔✔-There |are |1000 |
microliters |in |1 |milliliter.
What |does |a |micropipette |measure? |- |CORRECT |ANSWER✔✔-It |measures |precise |volumes |of |
liquids.
Name |3 |don't |of |pipetting |- |CORRECT |ANSWER✔✔-Do |not |pipette |without |a |tip, |do |no |blow |
bubbles |into |your |liquids, |and |do |not |release |the |plunger |too |quickly.
What |does |a |spectrophotometer |measure? |- |CORRECT |ANSWER✔✔-A |spectrophotometer |
measures |the |amount |of |light |absorbed |or |transmitted |through |a |liquid |sample.
What |is |the |purpose |of |"blanking" |a |spectrophotometer |- |CORRECT |ANSWER✔✔-The |purpose |
of |blanking |the |spectrophotometer |is |to |let |the |machine |know |that |the |light |coming |through |
is |a |reference |point. |You |are |telling |it |to |ignore |the |solvent |and |the |cuvette.
What |is |a |"cuvette"? |- |CORRECT |ANSWER✔✔-A |cuvette |is |a |glass |or |plastic |sample |container |
for |holding |liquids.
