BIOLOGY 1 LABORATORY MANUAL
EXAM QUESTIONS AND ANSWERS
GRADED A+
what is the relationship between a curie and a millicurie (unit of
radioactivity) ? - ANSWERS>>>>>a curie is 1000x bigger than a
millicurie
difference in measurements between people is known as.... -
ANSWERS>>>>>measurement error
volume is defined as.... - ANSWERS>>>>>the space that matter
such as an object or substance occupies
the standard unit of volume is... - ANSWERS>>>>>a liter
how can you measure volume? - ANSWERS>>>>>with a graduated
cylinder, flasks, beakers, and pipettes
flasks and beakers are best used to measure volumes from ___
to ____ ml - ANSWERS>>>>>10 to 1000 ml
the boundary between fluid and air that is curved rather than flat
due to the surface tension of the liquids.... -
ANSWERS>>>>>meniscus
, the higher the surface tension, the _________ _________ the
meniscus. - ANSWERS>>>>>more curved
would you expect the meniscus to be more pronounced in a
glass graduated cylinder filled with alcohol or water? Why? -
ANSWERS>>>>>water, because it has a higher surface tension
pipettes are used to measure _______ __ ________ volumes of liquid
- ANSWERS>>>>>small to moderate, ( usually 0.5ml-50ml)
micropipettes can measure very small volumes in .... -
ANSWERS>>>>>microliters (ul)
one microliter is __________ of a liter - ANSWERS>>>>>1/1,000,000
on a P1000 084 is read as.... - ANSWERS>>>>>840 microliters (ul)
on a P100 055 is read as..... - ANSWERS>>>>>55 microliters (ul)
on a P10 048 is read as... - ANSWERS>>>>>4.8 microliters (ul)
the ___ of an object is the amount of matter an object possesses
and stays the same no matter where the object is on earth. -
ANSWERS>>>>>mass
____ is affected by the gravitational forces in any given location. -
ANSWERS>>>>>weight
EXAM QUESTIONS AND ANSWERS
GRADED A+
what is the relationship between a curie and a millicurie (unit of
radioactivity) ? - ANSWERS>>>>>a curie is 1000x bigger than a
millicurie
difference in measurements between people is known as.... -
ANSWERS>>>>>measurement error
volume is defined as.... - ANSWERS>>>>>the space that matter
such as an object or substance occupies
the standard unit of volume is... - ANSWERS>>>>>a liter
how can you measure volume? - ANSWERS>>>>>with a graduated
cylinder, flasks, beakers, and pipettes
flasks and beakers are best used to measure volumes from ___
to ____ ml - ANSWERS>>>>>10 to 1000 ml
the boundary between fluid and air that is curved rather than flat
due to the surface tension of the liquids.... -
ANSWERS>>>>>meniscus
, the higher the surface tension, the _________ _________ the
meniscus. - ANSWERS>>>>>more curved
would you expect the meniscus to be more pronounced in a
glass graduated cylinder filled with alcohol or water? Why? -
ANSWERS>>>>>water, because it has a higher surface tension
pipettes are used to measure _______ __ ________ volumes of liquid
- ANSWERS>>>>>small to moderate, ( usually 0.5ml-50ml)
micropipettes can measure very small volumes in .... -
ANSWERS>>>>>microliters (ul)
one microliter is __________ of a liter - ANSWERS>>>>>1/1,000,000
on a P1000 084 is read as.... - ANSWERS>>>>>840 microliters (ul)
on a P100 055 is read as..... - ANSWERS>>>>>55 microliters (ul)
on a P10 048 is read as... - ANSWERS>>>>>4.8 microliters (ul)
the ___ of an object is the amount of matter an object possesses
and stays the same no matter where the object is on earth. -
ANSWERS>>>>>mass
____ is affected by the gravitational forces in any given location. -
ANSWERS>>>>>weight
