Blood Quiz

What percentage of whole blood is made up of plasma?

• 45%

• 55%

• 65%

• 75%

Which component of blood helps in preventing blood loss via clotting?

• Red Blood Cells

• White Blood Cells

• Platelets

• Plasma

What is the role of erythrocytes in the blood?

• Fight infections

• Carry O₂ and CO₂

• Form clots

• Regulate hormones

What is the process of blood cell formation called?

• Hematopoiesis

• Erythropoiesis

• Leukopoiesis

• Thrombopoiesis

Which hormone regulates the formation and destruction of red blood cells?

• Insulin

• Erythropoietin (EPO)

• Adrenaline

• Thyroxine

What happens during vascular spasm in blood clotting?

• Platelets gather and adhere to the site

• Smooth muscles contract to slow blood flow

• Fibrin proteins form a mesh-like clot

• Antibodies bind to antigens

What is the role of platelets in blood clotting?

• They form a mesh-like clot

• They gather and adhere to the site to form a plug

• They contract smooth muscles

• They produce antigens

What are antigens on RBCs specifically called?

• Hemostasis

• Agglutinogens

• Coagulation factors

• Antibodies

What does it mean if someone is Rh positive?

• They have anti-Rh antibodies

• They do not have the rhesus antigens

• They have the rhesus antigens

• They can only accept negative blood

Which blood type can only accept negative blood?

• Rh positive

• Rh negative

• AB positive

• O positive