BIOD FINAL (EXAM 1-6 & LABS 1-7) QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED AND
GRADED A+ ALREADY PASSED
What is the purpose of personal protection equipment (PPE)?
To protect/minimize one's exposure to hazards that can cause serious workplace
injuries and illnesses
If the fist three steps of the scientific method are defined as observation,
question, hypothesis, the next three are:
Experiment, predict, collect
T/F. Observation is the formulation of a question to gain more information about a
phenomenon
False
T/F. It is best to formulate a hypothesis after data has been collected.
False.
Contrast inductive and deductive reasoning.
Both inductive and deductive reasoning are used to develop a valid conclusion.
However, inductive reasoning moves from specific scenarios into a generalized
conclusion, while deductive reasoning moves from generalized truths to a true and
specific conclusion.
Contrast the differences among independent, dependent, and standardized
variables.
IV is the thing you're changing/altering
DV is the thing you're looking at/for
Standardized variables are what you know/what you expect to happen
Define experimental group
receives experimental treatment; independent variable is manipulated
Define control group
,The IV is being eliminated or set to a standard value; no treatment
Define positive control.
Does not receive any experimental treatment; it will give an expected result; ensures an
Define negative control.
Doesn't give a result, and no result would be logically expected
It would be reasonable to make predictions regarding which of the following
(select all that apply):
Negative control, positive control, hypothesis and/or outcome of dependent variable,
null hypothesis
Identify each as qualitative or quantitative data:
1. 42 meters
2. 2cc
3. Pain
4. Mean, median, and mode
5. Personal opinion
1. Quantitative
2. Quantitative
3. Qualitative
4. Quantitative
5. Qualitative
What are the 4 components of data analysis?
Summarize raw data, relationships, interpreting results, and reporting sources of errors
In the United States, measurements pertaining to medical sciences are recorded
and reported using:
metric units
A baby is born and the doctor pronounces the weight as 7 pounds 0 ounces.
Using the metric system, how will this value appear in the infant's medical chart?
1 lbs = 2.2kg
7/2.2 = 3.18kg
Tare functions are unreliable, and it is more accurate to mass the container alone,
add the sample and then subtract the difference. T/F.
,False
The graduated pipette is useful for:
Transferring liquid from one beaker to another
Disposable tips are characteristics to which type of pipette?
Micropipette
T/F. The majority of the world uses the metric system to quantify measurements.
True
T/F. The United States uses the SI system when recording and reporting health
science data.
False
Provide the base unit for METRIC measurements in each of the following.
1. Length
2. Volume
3. Mass
4. Temperature
1. Meter
2. liter
3. gram
4. Celsius
The unaided human eye can detect objects as small as:
0.1mm
A light microscope has an eye piece magnification of 10X, and the objective lens
is set to 30X. What is the total magnification?
300X
What three parameters are vital to microscopy?
1. Magnification
2. Resolution
3. Contrast
Adding stains or dyes to specimens increases:
Contrast
Electron microscopes have a distinct advantage over light microscopes b/c:
, Resolution is inversely related to light wavelength
identify each characteristic as scanning, transmission, or light microscope:
1. Can use an LED as its illumination source
2. Produces detailed image of surface
3. Uses a beam of electrons
4. Produces detailed internal images
5. Little to no specimen preparation required
1. Light
2. Scanning
3. Scanning and transmission
4. TEM
5. Light
Define simple diffusion.
The random movement of small molecules across a semi-permeable membrane form
areas of high concentration to low concentration. This process does NOT require
energy
An example of simple diffusion in the human body is:
Movement of gases (o2 and CO2) across the cell membrane
How does osmosis differ from simple diffusion?
Osmosis is the movement of water molecules only and simple diffusion is the movement
of some type of solute molecules
Describe the relationship between the "concentration" of water and solute
concentration in a solution.
the concentrations are inversely related; the greater concentration of solute molecules
the lower concentration of water molecules
What are the two conditions required for osmosis?
Solute concentration and membrane permeability
As a solute concentrations increases, it would take _____ amounts of pressure to
prevent osmosis across the semi-permeable membrane.
Increasing
Toxicity is defined by each of the following except:
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED AND
GRADED A+ ALREADY PASSED
What is the purpose of personal protection equipment (PPE)?
To protect/minimize one's exposure to hazards that can cause serious workplace
injuries and illnesses
If the fist three steps of the scientific method are defined as observation,
question, hypothesis, the next three are:
Experiment, predict, collect
T/F. Observation is the formulation of a question to gain more information about a
phenomenon
False
T/F. It is best to formulate a hypothesis after data has been collected.
False.
Contrast inductive and deductive reasoning.
Both inductive and deductive reasoning are used to develop a valid conclusion.
However, inductive reasoning moves from specific scenarios into a generalized
conclusion, while deductive reasoning moves from generalized truths to a true and
specific conclusion.
Contrast the differences among independent, dependent, and standardized
variables.
IV is the thing you're changing/altering
DV is the thing you're looking at/for
Standardized variables are what you know/what you expect to happen
Define experimental group
receives experimental treatment; independent variable is manipulated
Define control group
,The IV is being eliminated or set to a standard value; no treatment
Define positive control.
Does not receive any experimental treatment; it will give an expected result; ensures an
Define negative control.
Doesn't give a result, and no result would be logically expected
It would be reasonable to make predictions regarding which of the following
(select all that apply):
Negative control, positive control, hypothesis and/or outcome of dependent variable,
null hypothesis
Identify each as qualitative or quantitative data:
1. 42 meters
2. 2cc
3. Pain
4. Mean, median, and mode
5. Personal opinion
1. Quantitative
2. Quantitative
3. Qualitative
4. Quantitative
5. Qualitative
What are the 4 components of data analysis?
Summarize raw data, relationships, interpreting results, and reporting sources of errors
In the United States, measurements pertaining to medical sciences are recorded
and reported using:
metric units
A baby is born and the doctor pronounces the weight as 7 pounds 0 ounces.
Using the metric system, how will this value appear in the infant's medical chart?
1 lbs = 2.2kg
7/2.2 = 3.18kg
Tare functions are unreliable, and it is more accurate to mass the container alone,
add the sample and then subtract the difference. T/F.
,False
The graduated pipette is useful for:
Transferring liquid from one beaker to another
Disposable tips are characteristics to which type of pipette?
Micropipette
T/F. The majority of the world uses the metric system to quantify measurements.
True
T/F. The United States uses the SI system when recording and reporting health
science data.
False
Provide the base unit for METRIC measurements in each of the following.
1. Length
2. Volume
3. Mass
4. Temperature
1. Meter
2. liter
3. gram
4. Celsius
The unaided human eye can detect objects as small as:
0.1mm
A light microscope has an eye piece magnification of 10X, and the objective lens
is set to 30X. What is the total magnification?
300X
What three parameters are vital to microscopy?
1. Magnification
2. Resolution
3. Contrast
Adding stains or dyes to specimens increases:
Contrast
Electron microscopes have a distinct advantage over light microscopes b/c:
, Resolution is inversely related to light wavelength
identify each characteristic as scanning, transmission, or light microscope:
1. Can use an LED as its illumination source
2. Produces detailed image of surface
3. Uses a beam of electrons
4. Produces detailed internal images
5. Little to no specimen preparation required
1. Light
2. Scanning
3. Scanning and transmission
4. TEM
5. Light
Define simple diffusion.
The random movement of small molecules across a semi-permeable membrane form
areas of high concentration to low concentration. This process does NOT require
energy
An example of simple diffusion in the human body is:
Movement of gases (o2 and CO2) across the cell membrane
How does osmosis differ from simple diffusion?
Osmosis is the movement of water molecules only and simple diffusion is the movement
of some type of solute molecules
Describe the relationship between the "concentration" of water and solute
concentration in a solution.
the concentrations are inversely related; the greater concentration of solute molecules
the lower concentration of water molecules
What are the two conditions required for osmosis?
Solute concentration and membrane permeability
As a solute concentrations increases, it would take _____ amounts of pressure to
prevent osmosis across the semi-permeable membrane.
Increasing
Toxicity is defined by each of the following except:
