AALSO Field Guide Test 2 Questions and Answers
Verified 100% Correct
Pool style exhibits offer ___ enrichment to animals but are typically ___ to maintain.
less; easier
Automation reduces hands on tasks but creates the need for ___.
personnel to maintain the automated control systems
Water has been dubbed the "universal solvent" due mostly to its ___.
polarity
___ species can tolerate a variety of salinities.
Euryhaline
___ species need a tight range of salinity to survive.
Stenohaline
It is often desirable to keep salinity lower for euryhaline animals because proper salt can be
expensive. (True/False)
True
___ animals can tolerate a wide range of temperatures, while ___ animals cannot.
Eurythermic; stenothermic
Solid or liquid substances dissolve better at lower temperatures. (True/False)
False; higher
Gaseous substances dissolve better at lower temperatures. (True/False)
True
, ___ measure the amount of a chemical in a solution by measuring the amount of light
absorbed by the solution after adding a color changing reagent.
Spectrophotometers
___ is the amount of light absorbed while traveling through a sample.
Absorbance
___ is the amount of light that passes through a sample.
Transmittance
Absorbance, A, is mathematically related to transmittance, T, as follows: ___.
A = -log(T)
___ law states that absorbance is ___ related to concentration.
Beer's; directly
It is acceptable to use a square cuvette for one sample and a round cuvette for another
sample without re-zeroing when using a spectrophotometer. (True/False)
False; samples must use the same cuvette style.
When using a spectrophotometer, it is important to make sure samples are within the range
of the device's ___, as a linear relationship between absorbance and concentration cannot be
assumed beyond its scope.
calibration curve
Spectrophotometers typically produce light using a(n) ___, though some utilize ___ to allow
measurements in the ultraviolet light spectrum.
tungsten filament lamp; deuterium
When performing spectrophotometry, ___ arise from other chemicals in a sample that can
alter the accuracy and recovery of known standards in a test.
Verified 100% Correct
Pool style exhibits offer ___ enrichment to animals but are typically ___ to maintain.
less; easier
Automation reduces hands on tasks but creates the need for ___.
personnel to maintain the automated control systems
Water has been dubbed the "universal solvent" due mostly to its ___.
polarity
___ species can tolerate a variety of salinities.
Euryhaline
___ species need a tight range of salinity to survive.
Stenohaline
It is often desirable to keep salinity lower for euryhaline animals because proper salt can be
expensive. (True/False)
True
___ animals can tolerate a wide range of temperatures, while ___ animals cannot.
Eurythermic; stenothermic
Solid or liquid substances dissolve better at lower temperatures. (True/False)
False; higher
Gaseous substances dissolve better at lower temperatures. (True/False)
True
, ___ measure the amount of a chemical in a solution by measuring the amount of light
absorbed by the solution after adding a color changing reagent.
Spectrophotometers
___ is the amount of light absorbed while traveling through a sample.
Absorbance
___ is the amount of light that passes through a sample.
Transmittance
Absorbance, A, is mathematically related to transmittance, T, as follows: ___.
A = -log(T)
___ law states that absorbance is ___ related to concentration.
Beer's; directly
It is acceptable to use a square cuvette for one sample and a round cuvette for another
sample without re-zeroing when using a spectrophotometer. (True/False)
False; samples must use the same cuvette style.
When using a spectrophotometer, it is important to make sure samples are within the range
of the device's ___, as a linear relationship between absorbance and concentration cannot be
assumed beyond its scope.
calibration curve
Spectrophotometers typically produce light using a(n) ___, though some utilize ___ to allow
measurements in the ultraviolet light spectrum.
tungsten filament lamp; deuterium
When performing spectrophotometry, ___ arise from other chemicals in a sample that can
alter the accuracy and recovery of known standards in a test.
