Module Four Lab Questions

Module Four Lab Questions
Lab Number One
1. Which of the three types of fingerprints was the fingerprint that you examined (loop, arch, or whorl)? Within that print, what minutiae did you see?
2. Compare the print of your helper with your own. Describe the similarities and differences between the two fingerprints.
3. Imagine that you are Alphonse Bertillon and you are trying to explain why you think fingerprints can be so useful to help solve crimes. What would you say to persuade them? Pretend you are explaining to someone who has never noticed fingerprints or thought about what they are.
Lab Number Two
1. Name and describe the four main components of blood.
The four main components of blood are Red blood cells, White blood cells, Platelet and Plasma. The red blood cells contain hemoglobin, a protein that binds oxygen. Red blood cells transport oxygen to, and remove carbon dioxide from, body tissues. The white blood cells fight infection. One type of infection-fighting white blood cells fight disease by producing antibodies and thus destroying foreign materia. The platelets help the blood to clot, if you get a wound for example.
The plasma contains salts and various kinds of proteins.
2. What antigens and antibodies determine blood type? What are the antigens made of?
The antigens and antibodies that determine the blood type are the A and B antigens, the Rh antigens, the A and B antibodies and the Rh antibodies. A and B antigens are sugars and the Rh antigens are proteins.
3. How is blood type determined? What happens if someone is given the wrong type of blood in a blood transfusion?
Blood type is determined by which antigens and antibodies are present in the blood stream. If somebody is given the wrong blood in a transfusion Immunological reactions occur. This means that when the receiver of a blood transfusion has antibodies that work against the donor blood cells then the red blood cells from the donated blood will clump. The clumped red cells can clog blood vessels and stop the circulation of the blood to various parts of the body; the blood cells that are clogged can also burst open, leaking toxic contents out in the body, which can have fatal consequences for the patient.
4. Explain how you did in the game?
I did rather well in the game got four out of five blood drops. The only reason I did not get all five was because on my second patent I first tried to give him AB Rh- before B Rh+.
Lab Number Three
1. What common misconception does the law enforcement course on creating blood spatters dispel?
A common misconception that law enforcement course on creating blood spatters dispel is that if they do not understand or cannot identify the information they may overlook it all together.
2. What is the maximum speed that blood can travel? What can be learned from the shape of the drop?
The maximum speed that blood can travel is 25.1 feet per second. From this you can learn what way and just how fast someone or something is or was travelling.