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Unit 1 Scientific Method & Tools of a Biologist Flashcards | StudBud
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Unit 1 Scientific Method & Tools of a Biologist
Unit 1 Scientific Method & Tools of a Biologist
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Unit 1 Test Review
Flashcards
20 cards
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Practice quiz
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Questions
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Answers
1
Which separation technique is pictured below?
chromatography
genetic engineering
gel electrophoresis
centrifuge
2
What technique is used to separate DNA for analysis?
electrophoresis
genetic engineering
protein synthesis
chromatography
3
What is the first step in designing an experiment?
repeat the experiment
research the problem
report a conclusion
create a data table
4
Which activity would be an appropriate first step when designing an experiment?
repeating the experiment
creating a data table
researching a problem
making a conclusion based on data
5
The variable that is measured or observed in an experiment.
independent variable
dependent variable
controlled variable
6
Which of the following can cause damage to a slide under high power?
using coarse adjustment
using fine adjustment
adding stain
using the diaphragm
7
What adjustment knob should never be used under high power?
coarse adjustment
diaphragm
nosepiece
fine adjustment
8
Why is a coverslip placed on a slide at a 45 degree angle?
to prevent the formation of air bubbles
to increase the field of view
to stain your specimen
to create air bubbles
9
What technique is used to separate solutions based on solubility?
electrophoresis
genetic engineering
centrifuge
chromatography
10
How big is the field of view pictured below in mm?
700 mm
7 mm
70 mm
11
A fake pill used as a control group in an experiment.
placebo
controlled variable
control group
experimental group
12
The group that doesn't receive the independent variable and is used to compare in an experiment
experimental group
control group
controlled experiment
13
What is the volume of this graduated cylinder?
11 mL
10 mL
12 mL
5 mL
14
Which activity can help to increase the validity of an experiment?
using one test subject
repeating the experiment several times
not including a control group
Testing multiple independent variables
15
What is the total magnification using low power of this microscope?
10x
430x
100x
20x
16
The one variable that is changed in a controlled experiment.
dependent variable
independent variable
controlled variable
17
What technique is used to separate samples based on density?
chromatography
electrophoresis
genetic engineering
centrifuge
18
Which describes a scientific theory?
general statement that is supported by many observations
educated guess that can be tested
collection of data to support prediction
scientific fact that no longer requires evidence to support
19
Which part of the microscope should be used to make an image appear brighter?
fine adjustment
diaphragm
nosepiece
coarse adjustment
20
Which labeled part of the microscope would need to be adjusted to make an image brighter?
B
D
C
A
