Chapter 19: Part 4

Which of the following is not a way that red blood cell shape is significant? A) It gives the red blood cell a large surface area to volume ratio. B) It allows fast exchange of gases between the inside of the cell and the plasma. C) It enables red blood cells to form stacks. D) It allows red blood cells to bend and flex. E) It enables red blood cells to phagocytose bacteria.

It enables red blood cells to phagocytose bacteria.

Type AB blood has which of the following characteristics? A) RBCs have the Rh positive antigens and the anti-D plasma antibodies. B) RBCs have no surface antigens and both anti-A and anti-B antibodies in the plasma. C) RBCs have both the A & B surface antigens and no ABO plasma antibodies. D) RBCs have the A and the B surface antigens and the plasma has anti-A and anti-B antibodies. E) RBCs have the A antigen and the plasma has the anti-B antibody.

RBCs have both the A & B surface antigens and no ABO plasma antibodies.

________ are immature erythrocytes that are present in the circulation. A) Erythroblasts B) Normoblasts C) Myeloblasts D) Band cells E) Reticulocytes

Reticulocytes

Which of the following is true regarding red blood cells? A) They are anucleate. B) They survive for approximately one year. C) They have a biconvex shape. D) They are produced in the spleen. E) They primarily carry carbon dioxide.

They are anucleate.

When hemoglobin does not have oxygen bound to hemoglobin it is termed A) carbaminohemoglobin. B) deoxyhemoglobin. C) oxyhemoglobin. D) hemolyzed. E) sickle hemoglobin.

deoxyhemoglobin.

Which mature cell has no nucleus, no mitochondria and no ribosomes? A) erythrocyte B) leukocyte C) platelet D) thrombocyte E) neutrophil

erythrocyte

Reticulocytes complete their development into ________ in the circulation. A) neutrophils B) megakaryocytes C) thrombocytes D) macrophages E) erythrocytes

erythrocytes

The process of red blood cell production is called A) erythrocytosis. B) erythropenia. C) hemocytosis. D) erythropoiesis. E) hematopenia.

erythropoiesis.

Each hemoglobin molecule contains A) four alpha chains. B) one alpha and one beta chain. C) four iron atoms. D) one heme group. E) a molecule of oxygen and a molecule of carbon dioxide.

four iron atoms.

During fetal development the primary site(s) of red blood cell production is/are A) bone marrow. B) liver. C) thymus. D) kidneys. E) liver and spleen.

liver and spleen.

When hemoglobin is saturated with oxygen atoms it is termed A) carbaminohemoglobin. B) deoxyhemoglobin. C) oxyhemoglobin. D) hemolyzed. E) sickle hemoglobin.

oxyhemoglobin.

A person's blood type is determined by the A) size of the RBCs. B) volume of the RBCs. C) chemical composition of the hemoglobin. D) presence of specific glycoproteins on the cell membrane. E) shape of the RBCs.

presence of specific glycoproteins on the cell membrane.

Most of the iron that is removed from degraded hemoglobin is A) excreted by the kidneys. B) excreted by the liver. C) excreted by the intestines. D) recycled to the red bone marrow. E) stored in yellow bone marrow.

recycled to the red bone marrow.

In adults, erythropoiesis exclusively takes place in A) the liver. B) yellow bone marrow. C) red bone marrow. D) the spleen. E) lymphoid tissue.

red bone marrow.

Erythropoietin is a hormone A) released by the liver to stimulate red blood cell production. B) released by the liver to stimulate white blood cell production. C) released by the kidneys to stimulate red blood cell production. D) released by the kidneys to stimulate red and white blood cell production. E) released by the bone marrow to stimulate red blood cell production.

released by the kidneys to stimulate red blood cell production.

The developmental stage at which erythrocytes enter the circulation is as A) hemocytoblasts. B) reticulocytes. C) band forms. D) myeloid cells. E) proerythrocytes.

reticulocytes.

Erythropoiesis is stimulated when A) oxygen levels in the blood increase. B) carbon dioxide levels in the blood decrease. C) blood flow to the kidney declines. D) coagulation begins. E) blood pressure increases.

blood flow to the kidney declines.

When carbon dioxide is bound to hemoglobin it is termed A) carbaminohemoglobin. B) deoxyhemoglobin. C) oxyhemoglobin. D) hemolyzed. E) sickle hemoglobin.

carbaminohemoglobin.

Hydroxyurea is a common drug treatment for sickle cell anemia patients. Hydroxyurea improves sickle cell symptoms because it A) causes more hemoglobin alpha chains to be produced improving oxygen transport. B) causes more hemoglobin beta chains to be produced improving oxygen transport. C) increases the free iron in plasma. D) stimulates the production of fetal hemoglobin improving oxygen transport. E) increases the production of heme.

stimulates the production of fetal hemoglobin improving oxygen transport.

People with type AB blood are considered the "universal recipient" for transfusions because A) their blood cells lack A and B antigens. B) their blood lacks A or B agglutinins. C) their blood is plentiful in A and B agglutinins. D) they usually have very strong immune systems. E) they are usually Rh negative.

their blood lacks A or B agglutinins.