PLTW KEY TERMS DEFINITION QUESTIONS
AND ANSWERS 100% CORRECT | LATEST
UPDATE 2025
biomedical science - ANSWER the application of the principles of the natural
sciences, especially biology and physiology
forensic science - ANSWER the application of scientific knowledge to questions
of civil and criminal law
personal protective equipment - ANSWER specialized clothing or equipment
worn by an employee for protection against infectious materials(as defined by
OSHA)
experiment - ANSWER A research study conducted to determine the effect that
one variable has upon another variable.
Hypothesis - ANSWER Clear prediction of the anticipated results of an
experiment.
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.
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.
, Dependent Variable - ANSWER The measurable effect, outcome, or response in
which the research is interested.
independent variable - ANSWER The variable that is varied or manipulated by
the researcher.
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.
Helix - ANSWER Something spiral in form.
Deoxyribonucleic Acid (DNA) - ANSWER A double-stranded, helical nucleic acid
molecule capable of replicating and determining the inherited structure of a cell's
proteins.
Nucleotide - ANSWER A building block of DNA, consisting of a five-carbon
sugar covalently bonded to a nitrogenous base and a phosphate group.
Adenine - ANSWER A component of nucleic acids, energy-carrying molecules
such as ATP, and certain coenzymes. Chemically, it is a purine base.
Chromosome - ANSWER Any of the usually linear bodies in the cell nucleus
that contain the genetic material.
AND ANSWERS 100% CORRECT | LATEST
UPDATE 2025
biomedical science - ANSWER the application of the principles of the natural
sciences, especially biology and physiology
forensic science - ANSWER the application of scientific knowledge to questions
of civil and criminal law
personal protective equipment - ANSWER specialized clothing or equipment
worn by an employee for protection against infectious materials(as defined by
OSHA)
experiment - ANSWER A research study conducted to determine the effect that
one variable has upon another variable.
Hypothesis - ANSWER Clear prediction of the anticipated results of an
experiment.
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.
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.
, Dependent Variable - ANSWER The measurable effect, outcome, or response in
which the research is interested.
independent variable - ANSWER The variable that is varied or manipulated by
the researcher.
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.
Helix - ANSWER Something spiral in form.
Deoxyribonucleic Acid (DNA) - ANSWER A double-stranded, helical nucleic acid
molecule capable of replicating and determining the inherited structure of a cell's
proteins.
Nucleotide - ANSWER A building block of DNA, consisting of a five-carbon
sugar covalently bonded to a nitrogenous base and a phosphate group.
Adenine - ANSWER A component of nucleic acids, energy-carrying molecules
such as ATP, and certain coenzymes. Chemically, it is a purine base.
Chromosome - ANSWER Any of the usually linear bodies in the cell nucleus
that contain the genetic material.
