Biology Lab Exam 1 Study Guide Exam Verified Answers 2024
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Course
Bio 255
Institution
Bio 255
Biology Lab Exam 1 Study Guide Exam Verified Answers 2024
Two types of Unit Measurement
English(in., ft., lb, gal etc.) and Metric(kilo, deci, centi, gram)
Advantages of metric sys.s are?
easy to work with, universal, measurements are based on multiples of 10
what is the basic unit for...
biology lab exam 1 study guide exam verified answe
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Biology Lab Exam 1 Study Guide Exam
Verified Answers 2024
Two types of Unit Measurement
English(in., ft., lb, gal etc.) and Metric(kilo, deci, centi, gram)
Advantages of metric sys.s are?
easy to work with, universal, measurements are based on multiples of 10
what is the basic unit for measuring LENGTH?
meter
what is the basic unit for measuring WEIGHT?
gram
what is the basic unit for measuring VOLUME/LIQUID?
liter/cubic meters
Celsius to Farenheit Formula
C=(F-32)/1.8
Farenheit to Celsius Formula
F=(1.8XC)+32
or
F=(CX9/5)+32
Convert 1L to ml
1L=1000ml (X1000)
Convert 1cm to mm
1cm=10mm (X10)
Convert 1$ to cents
1$=100cents (X100)
Convert 100ml to L
100ml=.1L (/1000)
Convert 10mm to cm
10mm=1cm (/10)
Convert 100cents to $
100cents=1$ (/100)
, Discrete Data
(binomial) whole numbers; counting or classifying into units
Continuous Data
(approximate) decimals; number which may fall any place on the number line
Random Error
due to inherent chance variation and can not be attributed to any known cause-it's unavoidable and it
is evaluated by statistical means
Systematic Error
result from some experimental deficiency & can be described
Illegitimate Error
error that can be corrected or avoided. e.g bias
How do we express collected data?
graphical form
Precision-accuracy
exact measurement
mean (ave.)
measure of similarities (add all up and divide by how many)
range
measure of differences(subtract smallest from largest)
On a graph, what axis would you write weight?
y-axis
On a graph, where would you write length?
x-axis
The limit to which the human eye can see close or small objects clearly is?
0.1mm
What are the 2 microscopes biologists use to study cells?
Light microscope & Electron microscope
What is the difference between a light microscope and an electron microscope?(what are they best
used for)
Light microscopes are good for examining living organisms. Electron microscopes are powerful when
it comes to revealing the diverse parts within a cell
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