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Chapter Quiz
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1Define bioassay.


2Bioassay always directly measure the concentration of active substances.
A)True
B)False


3In today's lab, you will use a bioassay to measure the level of activity in ________.
A)pollutants
B)plant growth regulators
C)vitamins
D)pH buffers


4In today's bioassays, you will construct ________ to show the relationship between known concentrations of plant growth regulators and the dependent variable.
A)standard curves
B)pie charts
C)bar graphs
D)scatter plots


5


2,4-D
6


auxin
7


gibberellic acid
Answer choices:
A)root elongation
B)enlargement of cotyledons
C)curvature of stems


8The bioassays in today's lab will be done at a constant pH.
A)True
B)False





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