Blood Types Are Weirder Than You Think

How much blood does the average human adult body contain?

• 5 pints

• 10 pints

• 15 pints

• 20 pints

What is the primary function of plasma in the blood?

• To clot blood and stop bleeding.

• To carry oxygen to the body's tissues.

• To transport nutrients, waste, and chemical messages throughout the body.

• To fight off infections and foreign invaders.

What is the main role of platelets in the blood?

• To transport oxygen.

• To fight bacterial infections.

• To form clots and stop bleeding.

• To carry nutrients to cells.

What component within red blood cells is responsible for carrying oxygen?

• Plasma

• Platelets

• Hemoglobin

• White blood cells

What characteristic allows red blood cells to be flexible enough to pass through the tiniest blood vessels?

• Their large surface area

• Their biconcave shape

• The absence of a nucleus

• The presence of hemoglobin

What is the primary role of white blood cells in the body?

• Transporting oxygen and nutrients.

• Producing blood clots to stop bleeding.

• Identifying and fighting off foreign invaders.

• Storing iron for future use.

What term describes the clumping of blood cells that occurs when incompatible blood types are mixed?

• Hemolysis

• Coagulation

• Agglutination

• Sedimentation

Which blood type is considered the universal red blood cell donor, and which is the universal blood acceptor (for whole blood transfusions)?

• Universal donor: AB; Universal acceptor: O

• Universal donor: O; Universal acceptor: AB

• Universal donor: A; Universal acceptor: B

• Universal donor: B; Universal acceptor: A

What protein determines if a person's blood type is classified as Rh positive (Rh+)?

• Anti-A antigen

• Anti-B antigen

• RhD protein

• Hemoglobin

How many main blood types are recognized within the ABO and Rh systems combined?

• 4

• 6

• 8

• 10