BOC Hematology

Question 1

The majority of the iron in an adult is found as a constituent of:

A. hemoglobin
B. hemosiderin
C. myoglobin
D. transferrin

Answer 1

hemoglobin

Question 2

Which curve represents the production of the alpha polypeptide chain of hemoglobin?

Answer 2

B

Question 3

Which curve represents the production of beta polypeptide chains of hemoglobin?

Answer 3

D

Question 4

Which curve represents the production of gamma polypeptide chains of

Answer 4

C

Question 5

In order for hemoglobin to combine reversibly with oxygen, the iron must be:

A. Complexed with haptoglobin
B. freely circulating in the cytoplasm
C. attached to transferrin
D. in the ferrous state

Answer 5

D

Question 6

Which description best fits the Donath-Landsteiner antibody?

A. IgM cold agglutin
B. biphasic IgM hemolysin
C. IgG biphasic hemolysin
D. IgG warm agglutinin

Answer 6

C

Question 7

The abnormal erythrocyte in the image may result from which of the following processes?

A. deficiencies of cellular membrane processes
B. absence of plasma lipoproteins
C. defects in the cellular lipid bilayer
D. deficiencies of cellular enzymes

Answer 7

A

Question 8

What is the composition of the inclusion seen in this RBC?

A. DNA
B. RNA
C. iron
D. denatured hemoglobin

Answer 8

A