PLTW Biomedical Science Chapter 1
Test Exam Questions with Verified
Answers
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
cortex is next
innermost is medulla
fingerprint patterns - ANSWER-arch, loop, whorl
rigor mortis - ANSWER-stiffening of muscles after death
calculation of time of death - ANSWER-98.4-measured rectal temp divided by 1.5=hours
since death
bloodstain patterns - ANSWER-circular: 90 degrees, longer: smaller the angle
adenine - ANSWER-a component of nucleic acids, energy-carrying molecules such as
ATP, and certain coenzymes. Chemically, it is a purine base
Test Exam Questions with Verified
Answers
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
cortex is next
innermost is medulla
fingerprint patterns - ANSWER-arch, loop, whorl
rigor mortis - ANSWER-stiffening of muscles after death
calculation of time of death - ANSWER-98.4-measured rectal temp divided by 1.5=hours
since death
bloodstain patterns - ANSWER-circular: 90 degrees, longer: smaller the angle
adenine - ANSWER-a component of nucleic acids, energy-carrying molecules such as
ATP, and certain coenzymes. Chemically, it is a purine base
