EXSC 224 Exam 3

1. What is the average range of blood pH? 

• 1. 8.35- 8.45

• 1. 7.75- 7.85

• 4.65 - 4.75

• 7.35 - 7.45

1. Which blood type do we call the universal donor?

• AB

• O

• B

• A

1. Which of the following might start erythropoiesis?

• 1. decreased tissue demand for oxygen

• 1. Low O2 levels of EPO-producing cells

• moving to a lower altitude

• an elevated number of RBCs

1. An individual who is blood type AB negative can ________

• 1. receive types A, B, and AB, but not type O

• 1. receive only AB- blood

• 1. receive type A and type B regardless of Rh antigens

• 1. receive all types of blood except with the Rh antigen

1. Select the true statement about blood plasma

• 1. The solutes are suspended because they do not dissolve

• 1. It is about 90% water

• 1. The most abundant protein is hemoglobin

• 1. It is the same as serum but without the clotting proteins

1. The main source of erythrocytes in adult humans is the bone marrow in the shafts of the long bones

• True

• False

1. When will erythroblastosis fetalis not happen in the child of an Rh negative mother?

• 1. if the father is Rh-

• 1. if the father is Rh+

• 1. if it is not the first child

• 1. if the child is Rh+

1. What blood type: a person who has both anti A, anti B, and anti D antibodies

• 1. AB+

• AB-

• 1. O+

• O-

1. In centrifuged whole blood, what is the buffy coat? 

• 1. the layer of centrifuged whole blood that contains leukocytes and platelets

• 1. the layer of centrifuged whole blood that contains erythrocytes

• 1. the layer of centrifuged whole blood that contains the formed elements

• 1. the layer of centrifuged whole blood that contains water and proteins

1. Each heme contains an atom of iron and can transport 1 molecule of O2

• true

• false