PLTW- biomedical science EOC assessment Questions and Answers 100% Pass

PLTW- biomedical science EOC assessment Questions and Answers 100% Pass Name 5 pieces of evidence that might be obtained at a crime scene that could help solve the crime. - finger prints, foot prints, hairs, bodily fluids, & blood What is the difference between manner of death and cause of death? - Manner- What happened? EX. Homicide Mechanism- How they were killed EX. Stabbing How is time of death determined? - Glacier Equation Parts of a nucleotide - 5 carbon sugar, phosphate group, nitrogenous base Name all 4 bases of DNA - Adenine, Thymine, Cytosine, Guanine Which base is not present in RNA? - No THYMINE ( T ) it is replaced with URACIL ( U ) What do restriction enzymes do? - cut DNA at specific sites 2Brittie Donald, All Rights Reserved © 2025 What is the purpose of gel electrophoresis? - It allows for the separation of fragments of DNA. What way does DNA run on the gel? - Negative to positive charge What is a dependent variable? - variable that is being measured What is the independent variable? - The variable you change What is a control group? - The group that does not receive the experimental treatment in an experiment. What does PCR stand for? - polymerase chain reaction What is the difference between presumptive and confirmatory tests? - Presumptive test- a test to determine if further testing should be done Confirmatory test- a test to confirm hypothesis or idea What is the role of platelets? - Helps blood clot What is the role of red blood cells? - Carry oxygen around the body What is the role of white blood cells? - Protection from pathogens and micro- organisms - Ingest pathogens - Produce antibodies which recognise antigens on pathogens and destroy them 3Brittie Donald, All Rights Reserved © 2025 What is the role of plasma? - transport substances around the body- red blood cells especially What is the role of hemoglobin? - Present in RBC, carry's oxygen around the body What is the role of hematocrit? - To determine the percentage of RBC in the blood What blood type is the universal donor? - O People with type AB blood are considered the "universal recipient" for transfusions because - They have no antibodies to A,B or Rh You complete blood type testing and there is no agglutination with either anti-A or anti- B antibodies. What type of blood is present? - O symptoms of type 1 diabetes - frequent urination