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PLTW_ Biomedical Science Unit 1 TEST (1)
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PLTW_ Biomedical Science Unit 1 TEST (1)
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PLTW: Biomedical Science Unit 1 TEST5 steps to a crime scene investigation - ANS-1. Collect evidence
2. Sketch
3. Interview
4. examine
5. photograph
4 parts to a crime scene - ANS-sketch, legend, key, scale
3 primary fingerprint ridge patterns - ANS-arch, whorl, loop
arch - ANS-
whorl - ANS-
loop - ANS-
7 steps to experimental design - ANS-1. Identify the problem or question
2. Predict a solution to the problem or an answer to the question
3. Design an experiment to test your hypothesis
4. Carry out the experiment
5. Analyze the data and observations
6. State the conclusion
7. Complete a summary paragraph
Independent variable - ANS-Variable that is varied or manipulated by the researcher.
Dependent variable - ANS-Measurable effect, outcome, or response in which the research is
interested. results vary based on the independent variable.
Biomedical Science - ANS-The application of the principles of the natural sciences, especially
biology and physiology, to clinical medicine.
Control Group - ANS-The group in an experiment that serves as a comparison against the
experimental group where the independent variable is applied.
Experiment - ANS-A research study conducted to determine the effect that one variable has
upon another variable.
Forensic Science - ANS-The application of scientific knowledge to questions of civil and criminal
law.
, Hypothesis - ANS-Clear prediction of the anticipated results of an experiment.
Negative Control - ANS-Control group where conditions produce a negative outcome.
Personal Protective Equipment - ANS-Specialized clothing or equipment, worn by an employee
for protection against infectious materials (as defined by OSHA).
Positive Control - ANS-Group expected to have a positve result, allowing the researcher to
show that the experiment set up was capable of producing results.
Algor Mortis (T) - ANS-cooling of the body to the surrounding temperature after death.
Rigor Mortis (S) - ANS-stiffness of the body that sets in several hours after death.
Lividity - ANS-helps determine the position of the body at time of death.
The Glastier equation - ANS-98.4-recorded temp/1.5hours=Hours Since Death
Types of Blood - ANS-Type A, Type B, Type AB, Type O
Clumping with a serum that is Anti-A indicates
(same with Anti-B) - ANS-that the blood type has "A" in it
that the blood type has "B" in it
cuticle - ANS-What is the outermost layer of the hair?
cortex - ANS-Home to pigment containing granules - gives hair color.
medulla - ANS-This layer may be continuous, discontinuous, fragmentary, or even absent. The
diameter of the ____________________ is a useful characteristic in the identification and
comparison process.
Does the Glastier equation work for all ambient temperatures? Why or why not? - ANS-No, the
Glastier equation does not work for all ambient temperatures because the hours since death is
thrown off by very high or low temperatues.
What did the blood stain patterns left near Anna Garcia tell you about her death? - ANS-If blood
is dropped from a higher height, then the blood spatter diameter increases as a result of the
kinetic energy and force of gravity as blood falls to the Earth. (The blood at the crime scene was
dropped from table height)
Adenine - ANS-A component of the nucleic acids, energy-carrying molecules such as ATP, and
certain conenzymes. Chemically, it is a purine base.
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