Question

name: arian spika
materials needed:

• 16 clear cups
• yellow food coloring
• blue food coloring
• sharpie marker
• teaspoon

date: 9/12/20
instructions:

1. start with 4 small clear cups and fill them half - way with water.
2. label the outside of the cups with a sharpie. label them \a\, \b\, \ab\ and \o\.
3. place 2 drops of yellow food coloring in the \a\ cup to turn the water yellow.
4. place 2 drops of blue food coloring in the \b\ cup to turn the water blue.
5. place one drop of yellow food coloring and one drop of blue food coloring in the \ab\ cup to produce green water.
6. leave the \o\ cup clear.
7. in the remaining cups, label 3 other cups as \a\, 3 as \b\, 3 as \ab\ and 3 as \o\
8. distribute an equal amount of the corresponding \blood types\ into the other cups. this will produce 4 yellow \a\ blood type cups, 4 blue \b\ blood type cups, 4 green \ab\ blood type cups and 4 clear \o\ blood type cups.

in this experiment:

• the yellow food coloring represents the ____ antigen.
• the blue food coloring represents the ____ antigen.

to determine if blood types are compatible with each other, think of the blood as these different colors.
guidelines:

• it is a safe transfusion if the color does not change when mixed with another.
• it is considered an unsafe transfusion if the color changes when mixed with another.
• you are looking for color change. it can be a lighter or darker tone of the colors yellow, blue and green, however, it cannot change into a new color.

steps:

• pour a small amount of \donor\ blood into a recipient cup.
• write an \s\ if it is a safe transfusion (color does not change) or a \u\ if it is an unsafe transfusion (color changes).

Explanation:

In blood - type models, type A blood has A antigens, type B blood has B antigens. The yellow food coloring represents the A antigen and the blue food coloring represents the B antigen.

Answer:

A antigen: yellow food coloring; B antigen: blue food coloring