Blood Composition

Where are antigens usually located?

• On the surface of red blood cells

• In the plasma

• Inside the nucleus

• In the mitochondria

What is the visible effect of an agglutination reaction?

• Formation of a precipitate in the form of flakes

• Change in color to blue

• Emission of light

• Increase in temperature

What significant discovery did Karl Landsteiner make in 1901?

• received the nobel prize

• blood types

• Rhesus (Rh) factor

• Insulin

How did Karl Landsteiner's discoveries impact blood transfusions?

• They made transfusions unnecessary.

• They allowed for safe and compatible transfusions.

• They increased the risk of transfusions.

• They eliminated the need for blood typing.

Which year marks the discovery of the Rhesus (Rh) factor by Karl Landsteiner?

• 1920

• 1930

• 1940

• 1950

Which blood type has both A and B antigens on red blood cells?

• A

• B

• AB

• O

Which blood type has neither A nor B antibodies in the plasma?

• A

• B

• AB

• O

What antibodies are found in the plasma of blood type A?

• anti-A

• anti-B

• Neither A nor B

• Both A and B

Which blood group has Anti-A antibodies in the plasma?

• Group A

• Group B

• Group AB

• Group O

Which blood group has A and B antigens on the red blood cells?

• Group A

• Group B

• Group AB

• Group O