Biology Lab Exam 1 Study Guide
Correct Questions And Answers
Two types of Unit Measurement Correct Answers English(in., ft., lb, gal etc.) and
Metric(kilo, deci, centi, gram)
Advantages of metric sys.s are? Correct Answers easy to work with, universal,
measurements are based on multiples of 10
what is the basic unit for measuring LENGTH? Correct Answers meter
what is the basic unit for measuring WEIGHT? Correct Answers gram
what is the basic unit for measuring VOLUME/LIQUID? Correct Answers liter/cubic
meters
Celsius to Farenheit Formula Correct Answers C=(F-32)/1.8
Farenheit to Celsius Formula Correct Answers F=(1.8XC)+32
or
F=(CX9/5)+32
Convert 1L to ml Correct Answers 1L=1000ml (X1000)
Convert 1cm to mm Correct Answers 1cm=10mm (X10)
Convert 1$ to cents Correct Answers 1$=100cents (X100)
Convert 100ml to L Correct Answers 100ml=.1L (/1000)
Convert 10mm to cm Correct Answers 10mm=1cm (/10)
Convert 100cents to $ Correct Answers 100cents=1$ (/100)
Discrete Data Correct Answers (binomial) whole numbers; counting or classifying into
units
Continuous Data Correct Answers (approximate) decimals; number which may fall any
place on the number line
Random Error Correct Answers 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 Correct Answers result from some experimental deficiency & can be
described
Illegitimate Error Correct Answers error that can be corrected or avoided. e.g bias
How do we express collected data? Correct Answers graphical form
Precision-accuracy Correct Answers exact measurement
mean (ave.) Correct Answers measure of similarities (add all up and divide by how
many)
range Correct Answers measure of differences(subtract smallest from largest)
On a graph, what axis would you write weight? Correct Answers y-axis
On a graph, where would you write length? Correct Answers x-axis
The limit to which the human eye can see close or small objects clearly is? Correct
Answers 0.1mm
What are the 2 microscopes biologists use to study cells? Correct Answers Light
microscope & Electron microscope
What is the difference between a light microscope and an electron microscope?(what
are they best used for) Correct Answers Light microscopes are good for examining
living organisms. Electron microscopes are powerful when it comes to revealing the
diverse parts within a cell
Light Microscopes Correct Answers pass visible light through a specimen & magnify
cellular structure w/ lenses
what is total magnification? Correct Answers multiply the ocular(10x) by the objective
Electron Microscopes Correct Answers focus a beam of electrons through a specimen
(TEM) or onto its surface (SEM)
Two processes of a microscope Correct Answers magnification(larger), resolving
power(sharp)
Resolving Power Correct Answers the ability of an optical instrument to show two
objects as separate
How do you enhance visualization of cellular structures? Correct Answers stain/dye
the lower the objective the ______ the field Correct Answers wider
Correct Questions And Answers
Two types of Unit Measurement Correct Answers English(in., ft., lb, gal etc.) and
Metric(kilo, deci, centi, gram)
Advantages of metric sys.s are? Correct Answers easy to work with, universal,
measurements are based on multiples of 10
what is the basic unit for measuring LENGTH? Correct Answers meter
what is the basic unit for measuring WEIGHT? Correct Answers gram
what is the basic unit for measuring VOLUME/LIQUID? Correct Answers liter/cubic
meters
Celsius to Farenheit Formula Correct Answers C=(F-32)/1.8
Farenheit to Celsius Formula Correct Answers F=(1.8XC)+32
or
F=(CX9/5)+32
Convert 1L to ml Correct Answers 1L=1000ml (X1000)
Convert 1cm to mm Correct Answers 1cm=10mm (X10)
Convert 1$ to cents Correct Answers 1$=100cents (X100)
Convert 100ml to L Correct Answers 100ml=.1L (/1000)
Convert 10mm to cm Correct Answers 10mm=1cm (/10)
Convert 100cents to $ Correct Answers 100cents=1$ (/100)
Discrete Data Correct Answers (binomial) whole numbers; counting or classifying into
units
Continuous Data Correct Answers (approximate) decimals; number which may fall any
place on the number line
Random Error Correct Answers 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 Correct Answers result from some experimental deficiency & can be
described
Illegitimate Error Correct Answers error that can be corrected or avoided. e.g bias
How do we express collected data? Correct Answers graphical form
Precision-accuracy Correct Answers exact measurement
mean (ave.) Correct Answers measure of similarities (add all up and divide by how
many)
range Correct Answers measure of differences(subtract smallest from largest)
On a graph, what axis would you write weight? Correct Answers y-axis
On a graph, where would you write length? Correct Answers x-axis
The limit to which the human eye can see close or small objects clearly is? Correct
Answers 0.1mm
What are the 2 microscopes biologists use to study cells? Correct Answers Light
microscope & Electron microscope
What is the difference between a light microscope and an electron microscope?(what
are they best used for) Correct Answers Light microscopes are good for examining
living organisms. Electron microscopes are powerful when it comes to revealing the
diverse parts within a cell
Light Microscopes Correct Answers pass visible light through a specimen & magnify
cellular structure w/ lenses
what is total magnification? Correct Answers multiply the ocular(10x) by the objective
Electron Microscopes Correct Answers focus a beam of electrons through a specimen
(TEM) or onto its surface (SEM)
Two processes of a microscope Correct Answers magnification(larger), resolving
power(sharp)
Resolving Power Correct Answers the ability of an optical instrument to show two
objects as separate
How do you enhance visualization of cellular structures? Correct Answers stain/dye
the lower the objective the ______ the field Correct Answers wider
