PLTW Biomedical Science Chapter 1 Test
with complete solutions
biomedical science - ANSWER- the application of the principles of the natural
sciences, especially biology and physiology, to clinical medicine
control group - ANSWER- the group in an experiment where the independent
variable being tested is not applied so that it may serve as a standard for
comparison against the experimental group where the independent variable is
applied
dependent variable - ANSWER- the measurable effect, outcome, or response in
which the research is interested
experiment - ANSWER- a research study conducted to determine the effect that
one variable has upon another variable
forensic science - ANSWER- the application of scientific knowledge to questions
of civil and criminal law
hypothesis - ANSWER- clear prediction of the anticipated results of an
experiment
independent variable - ANSWER- the variable that is varied or manipulated by the
researcher
negative control - ANSWER- control group where conditions produce a negative
outcome. Negative control groups help identify outside influences which may be
present that were not accounted for when the procedure was created.
personal protective equipment - ANSWER- specialized clothing or equipment,
worm by an employee for protection against infectious materials (as defined by
OSHA)
, positive control - ANSWER- group expected to have a positive result, allowing the
researcher to show that the experimental set up was capable of producing results
what are principles of biomedical science used for? - ANSWER- to investigate the
circumstances surrounding a mysterious death
what are experiments designed for? - ANSWER- to provide answers to testable
questions
what can be done at a crime scene of a mysterious death to help reconstruct what
happened? - ANSWER- collect evidence, interview, examine, sketch, photograph,
DNA sample, witnesses, finger prints, etc. recreate scene
How do the clues found at a scene of a mysterious death help investigators
determine what might have occurred and help identify or exonerate potential
suspects? - ANSWER- they might be able to tell them who was at the scene,
wounds on victim, run DNA on fingerprints or blood
How do scientists design experiments to find the most accurate answer to the
question they are asking? - ANSWER- scientific method:problem, hypothesis,
design experiment, procedure, analyze data, chart, conclusion,summary, next
steps
How are bloodstain patterns left at a crime scene used to help investigators
establish the events that took place during a crime? - ANSWER- they show which
angle and height the blood was dropped from, they help determine what
happened at the scene, like violence of death
crime scene search methods - ANSWER- link: no set pattern, evidence leads to
where they go next
line (strip): used on large, outdoor scenes, members are arranged at regular
intervals then search along straight lines
grid:used on large, outdoor scenes,follow first line pattern then realign on the
other line pattern
zone:scenes with defined zones, houses, buildings, each assigned a small zone
spiral:no physical barriers, water, outward or inward
wheel/ray:small, circular scenes, start at a critical point and travel out along
straight lines
structure of hair (layers) - ANSWER- cuticle is outermost
with complete solutions
biomedical science - ANSWER- the application of the principles of the natural
sciences, especially biology and physiology, to clinical medicine
control group - ANSWER- the group in an experiment where the independent
variable being tested is not applied so that it may serve as a standard for
comparison against the experimental group where the independent variable is
applied
dependent variable - ANSWER- the measurable effect, outcome, or response in
which the research is interested
experiment - ANSWER- a research study conducted to determine the effect that
one variable has upon another variable
forensic science - ANSWER- the application of scientific knowledge to questions
of civil and criminal law
hypothesis - ANSWER- clear prediction of the anticipated results of an
experiment
independent variable - ANSWER- the variable that is varied or manipulated by the
researcher
negative control - ANSWER- control group where conditions produce a negative
outcome. Negative control groups help identify outside influences which may be
present that were not accounted for when the procedure was created.
personal protective equipment - ANSWER- specialized clothing or equipment,
worm by an employee for protection against infectious materials (as defined by
OSHA)
, positive control - ANSWER- group expected to have a positive result, allowing the
researcher to show that the experimental set up was capable of producing results
what are principles of biomedical science used for? - ANSWER- to investigate the
circumstances surrounding a mysterious death
what are experiments designed for? - ANSWER- to provide answers to testable
questions
what can be done at a crime scene of a mysterious death to help reconstruct what
happened? - ANSWER- collect evidence, interview, examine, sketch, photograph,
DNA sample, witnesses, finger prints, etc. recreate scene
How do the clues found at a scene of a mysterious death help investigators
determine what might have occurred and help identify or exonerate potential
suspects? - ANSWER- they might be able to tell them who was at the scene,
wounds on victim, run DNA on fingerprints or blood
How do scientists design experiments to find the most accurate answer to the
question they are asking? - ANSWER- scientific method:problem, hypothesis,
design experiment, procedure, analyze data, chart, conclusion,summary, next
steps
How are bloodstain patterns left at a crime scene used to help investigators
establish the events that took place during a crime? - ANSWER- they show which
angle and height the blood was dropped from, they help determine what
happened at the scene, like violence of death
crime scene search methods - ANSWER- link: no set pattern, evidence leads to
where they go next
line (strip): used on large, outdoor scenes, members are arranged at regular
intervals then search along straight lines
grid:used on large, outdoor scenes,follow first line pattern then realign on the
other line pattern
zone:scenes with defined zones, houses, buildings, each assigned a small zone
spiral:no physical barriers, water, outward or inward
wheel/ray:small, circular scenes, start at a critical point and travel out along
straight lines
structure of hair (layers) - ANSWER- cuticle is outermost
