Lymphocytes And Monocytes Both Arise From

Question: Which statement best describes red blood cells?

-Red blood cells possess a protein known as hemoglobin.

-Red blood cells form antibodies to fight antigens.

-Red blood cells have a nucleus and most organelles.

-Red blood cells live about 10 days.

Answer: Red blood cells possess a protein known as hemoglobin.

Question: Medications known as anticoagulants interfere with:

-the coagulation cascade.

-platelet activation.

-platelet aggregation.

-vascular spasms.

Answer: the coagulation cascade.

Question: How do vascular spasms contribute to the process of hemostasis?

-Vascular spasms transform fibrinogen into fibrin.

-Vascular spasms cause activated platelets to release the contents of their granules.

-Vascular spasms limit blood loss.

-Vascular spasms cause platelets to adhere to exposed collagen.

Answer: Vascular spasms limit blood loss

Question: The ABO blood group is based on which antigen(s)?

-antigen O

-antigen D

-antigen Rh

-antigens A and B

Answer: antigens A and B

Question:

Answer: the heme group in hemoglobin has broken down into biliverdin.

Question: Carbohydrate groups on the surfaces of erythrocytes determine blood type and are known as:

-antibodies.

-antigens.

-tissue factors.

-agglutinins.

Answer: antigens.

Question: During a transfusion, if incompatible antigens are introduced, antibodies can bind to foreign antigens, causing them to clump together, or:

-coagulate.

-granulate.

-agglutinate.

-activate.

Answer: agglutinate.

Question: Bilirubin comes from the breakdown of:

-iron ions found in hemoglobin molecules.

-amino acids of hemoglobin.

-heme molecules of hemoglobin that lack iron.

-globin chains of hemoglobin.

Answer: heme molecules of hemoglobin that lack iron.

Question: Which of the following might trigger erythropoiesis?

-an increased number of RBCs

-moving to a lower altitude

-blood oxygen levels fall below normal

-decreased tissue demand for oxygen

Answer: blood oxygen levels fall below normal

Question: The most abundant component of plasma is:

-ions.

-water.

-proteins.

-gases.

Answer: water