Lab: Using Blood Tests To Identify Criminals And Babies - Anatomy And Physiology Worksheet
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Date_____
Anatomy and Physiology 2
Canale
Lab: Using Blood Tests to Identify Criminals and Babies
Part 1. Blood Types (A-B-O system)
There are four blood types in the ABO system: Type A, Type B, Type AB, and Type O. These
blood types refer to different versions of carbohydrate molecules (complex sugars), which are
present on the surface of red blood cells.
People with:
Have:
Type A carbohydrate molecules
Type A blood
on their red blood cells
Type B carbohydrate molecules
Type B blood
on their red blood cells
Type A and B carbohydrate
Type AB
molecules
blood
on their red blood cells
Neither A nor B carbohydrate
Type O blood
molecules
on their red blood cells
The Type A and Type B carbohydrate molecules are called antigens because they can stimulate
the body to produce an immune response, including antibodies. Antigens are found attached
to the cellular membrane. Antibodies are special proteins that travel in the blood and help our
bodies to destroy viruses or bacteria that may have infected our bodies.
1. Name one difference between an antigen and an antibody?
______________________________________________________________________________
2. Circle your prediction on what will happen when you add type A blood to:
A. solution containing Type A antibodies:
clot
or
no noticeable difference
B. solution containing Type B antibodies:
clot
or
no noticeable difference
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